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Ubuntu Security Notice USN-5565-1

Ubuntu Security Notice 5565-1 - Zhenpeng Lin discovered that the network packet scheduler implementation in the Linux kernel did not properly remove all references to a route filter before freeing it in some situations. A local attacker could use this to cause a denial of service or execute arbitrary code. It was discovered that the netfilter subsystem of the Linux kernel did not prevent one nft object from referencing an nft set in another nft table, leading to a use-after-free vulnerability. A local attacker could use this to cause a denial of service or execute arbitrary code.

Packet Storm
#vulnerability#ubuntu#linux#dos#intel#perl#amd

==========================================================================
Ubuntu Security Notice USN-5565-1
August 10, 2022

linux, linux-hwe-5.15, linux-lowlatency, linux-lowlatency-hwe-5.15
vulnerabilities
==========================================================================

A security issue affects these releases of Ubuntu and its derivatives:

  • Ubuntu 22.04 LTS
  • Ubuntu 20.04 LTS

Summary:

Several security issues were fixed in the Linux kernel.

Software Description:

  • linux: Linux kernel
  • linux-lowlatency: Linux low latency kernel
  • linux-hwe-5.15: Linux hardware enablement (HWE) kernel
  • linux-lowlatency-hwe-5.15: Linux low latency kernel

Details:

Zhenpeng Lin discovered that the network packet scheduler implementation in
the Linux kernel did not properly remove all references to a route filter
before freeing it in some situations. A local attacker could use this to
cause a denial of service (system crash) or execute arbitrary code.
(CVE-2022-2588)

It was discovered that the netfilter subsystem of the Linux kernel did not
prevent one nft object from referencing an nft set in another nft table,
leading to a use-after-free vulnerability. A local attacker could use this
to cause a denial of service (system crash) or execute arbitrary code.
(CVE-2022-2586)

It was discovered that the implementation of POSIX timers in the Linux
kernel did not properly clean up timers in some situations. A local
attacker could use this to cause a denial of service (system crash) or
execute arbitrary code. (CVE-2022-2585)

Johannes Wikner and Kaveh Razavi discovered that for some AMD x86-64
processors, the branch predictor could by mis-trained for return
instructions in certain circumstances. A local attacker could possibly use
this to expose sensitive information. (CVE-2022-29900)

Johannes Wikner and Kaveh Razavi discovered that for some Intel x86-64
processors, the Linux kernel’s protections against speculative branch
target injection attacks were insufficient in some circumstances. A local
attacker could possibly use this to expose sensitive information.
(CVE-2022-29901)

Update instructions:

The problem can be corrected by updating your system to the following
package versions:

Ubuntu 22.04 LTS:
linux-image-5.15.0-46-generic 5.15.0-46.49
linux-image-5.15.0-46-generic-64k 5.15.0-46.49
linux-image-5.15.0-46-generic-lpae 5.15.0-46.49
linux-image-5.15.0-46-lowlatency 5.15.0-46.49
linux-image-5.15.0-46-lowlatency-64k 5.15.0-46.49
linux-image-generic 5.15.0.46.46
linux-image-generic-64k 5.15.0.46.46
linux-image-generic-64k-hwe-22.04 5.15.0.46.46
linux-image-generic-hwe-22.04 5.15.0.46.46
linux-image-generic-lpae 5.15.0.46.46
linux-image-generic-lpae-hwe-22.04 5.15.0.46.46
linux-image-lowlatency 5.15.0.46.43
linux-image-lowlatency-64k 5.15.0.46.43
linux-image-lowlatency-64k-hwe-22.04 5.15.0.46.43
linux-image-lowlatency-hwe-22.04 5.15.0.46.43
linux-image-virtual 5.15.0.46.46
linux-image-virtual-hwe-22.04 5.15.0.46.46

Ubuntu 20.04 LTS:
linux-image-5.15.0-46-generic 5.15.0-46.49~20.04.1
linux-image-5.15.0-46-generic-64k 5.15.0-46.49~20.04.1
linux-image-5.15.0-46-generic-lpae 5.15.0-46.49~20.04.1
linux-image-5.15.0-46-lowlatency 5.15.0-46.49~20.04.1
linux-image-5.15.0-46-lowlatency-64k 5.15.0-46.49~20.04.1
linux-image-generic-64k-hwe-20.04 5.15.0.46.49~20.04.16
linux-image-generic-hwe-20.04 5.15.0.46.49~20.04.16
linux-image-generic-lpae-hwe-20.04 5.15.0.46.49~20.04.16
linux-image-lowlatency-64k-hwe-20.04 5.15.0.46.49~20.04.15
linux-image-lowlatency-hwe-20.04 5.15.0.46.49~20.04.15
linux-image-virtual-hwe-20.04 5.15.0.46.49~20.04.16

After a standard system update you need to reboot your computer to make
all the necessary changes.

ATTENTION: Due to an unavoidable ABI change the kernel updates have
been given a new version number, which requires you to recompile and
reinstall all third party kernel modules you might have installed.
Unless you manually uninstalled the standard kernel metapackages
(e.g. linux-generic, linux-generic-lts-RELEASE, linux-virtual,
linux-powerpc), a standard system upgrade will automatically perform
this as well.

References:
https://ubuntu.com/security/notices/USN-5565-1
CVE-2022-2585, CVE-2022-2586, CVE-2022-2588, CVE-2022-29900,
CVE-2022-29901

Package Information:
https://launchpad.net/ubuntu/+source/linux/5.15.0-46.49
https://launchpad.net/ubuntu/+source/linux-lowlatency/5.15.0-46.49
https://launchpad.net/ubuntu/+source/linux-hwe-5.15/5.15.0-46.49~20.04.1

https://launchpad.net/ubuntu/+source/linux-lowlatency-hwe-5.15/5.15.0-46.49~20.04.1

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Red Hat OpenShift Container Platform release 4.11.12 is now available with updates to packages and images that fix several bugs and add enhancements. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.This content is licensed under the Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by/4.0/). If you distribute this content, or a modified version of it, you must provide attribution to Red Hat Inc. and provide a link to the original. Related CVEs: * CVE-2022-26945: go-getter: command injection vulnerability * CVE-2022-30321: go-getter: unsafe download (issue 1 of 3) * CVE-2022-30322: go-getter: unsafe download (issue 2 of 3) * CVE-2022-30323: go-getter: unsafe download (issue 3 of 3)

RHSA-2022:7276: Red Hat Security Advisory: Red Hat Advanced Cluster Management 2.4.8 security fixes and container updates

Red Hat Advanced Cluster Management for Kubernetes 2.4.8 General Availability release images, which fix security issues. Red Hat Product Security has rated this update as having a security impact of Moderate. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE links in the References section.This content is licensed under the Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by/4.0/). If you distribute this content, or a modified version of it, you must provide attribution to Red Hat Inc. and provide a link to the original. Related CVEs: * CVE-2022-2238: search-api: SQL injection leads to remote denial of service * CVE-2022-25858: terser: insecure use of regular expressions leads to ReDoS * CVE-2022-31129: moment: inefficient parsing algorithm resulting in DoS * CVE-2022-35948: nodejs: undici vulnerable to CRLF via content headers * CVE-2022-35949: n...

Red Hat Security Advisory 2022-7173-01

Red Hat Security Advisory 2022-7173-01 - This is a kernel live patch module which is automatically loaded by the RPM post-install script to modify the code of a running kernel. Issues addressed include privilege escalation and use-after-free vulnerabilities.

Red Hat Security Advisory 2022-7137-01

Red Hat Security Advisory 2022-7137-01 - This is a kernel live patch module which is automatically loaded by the RPM post-install script to modify the code of a running kernel. Issues addressed include privilege escalation and use-after-free vulnerabilities.

Red Hat Security Advisory 2022-7110-01

Red Hat Security Advisory 2022-7110-01 - The kernel packages contain the Linux kernel, the core of any Linux operating system. Issues addressed include code execution, information leakage, memory leak, privilege escalation, and use-after-free vulnerabilities.

RHSA-2022:7146: Red Hat Security Advisory: kernel security update

An update for kernel is now available for Red Hat Enterprise Linux 7.4 Advanced Update Support. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.This content is licensed under the Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by/4.0/). If you distribute this content, or a modified version of it, you must provide attribution to Red Hat Inc. and provide a link to the original. Related CVEs: * CVE-2022-2588: kernel: a use-after-free in cls_route filter implementation may lead to privilege escalation

RHSA-2022:7134: Red Hat Security Advisory: kernel-rt security and bug fix update

An update for kernel-rt is now available for Red Hat Enterprise Linux 8. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.This content is licensed under the Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by/4.0/). If you distribute this content, or a modified version of it, you must provide attribution to Red Hat Inc. and provide a link to the original. Related CVEs: * CVE-2022-0494: kernel: information leak in scsi_ioctl() * CVE-2022-1353: Kernel: A kernel-info-leak issue in pfkey_register * CVE-2022-2588: kernel: a use-after-free in cls_route filter implementation may lead to privilege escalation * CVE-2022-23816: hw: cpu: AMD: RetBleed Arbitrary Speculative Code Execution with Return Instructions * CVE-2022-23825: hw: c...

RHSA-2022:7110: Red Hat Security Advisory: kernel security, bug fix, and enhancement update

An update for kernel is now available for Red Hat Enterprise Linux 8. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.This content is licensed under the Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by/4.0/). If you distribute this content, or a modified version of it, you must provide attribution to Red Hat Inc. and provide a link to the original. Related CVEs: * CVE-2022-0494: kernel: information leak in scsi_ioctl() * CVE-2022-1353: Kernel: A kernel-info-leak issue in pfkey_register * CVE-2022-2588: kernel: a use-after-free in cls_route filter implementation may lead to privilege escalation * CVE-2022-23816: hw: cpu: AMD: RetBleed Arbitrary Speculative Code Execution with Return Instructions * CVE-2022-23825: hw: cpu:...

CVE-2022-36957: Published | Zero Day Initiative

SolarWinds Platform was susceptible to the Deserialization of Untrusted Data. This vulnerability allows a remote adversary with Orion admin-level account access to SolarWinds Web Console to execute arbitrary commands.

CVE-2022-38108: Published | Zero Day Initiative

SolarWinds Platform was susceptible to the Deserialization of Untrusted Data. This vulnerability allows a remote adversary with Orion admin-level account access to SolarWinds Web Console to execute arbitrary commands.

Red Hat Security Advisory 2022-6983-01

Red Hat Security Advisory 2022-6983-01 - The kernel packages contain the Linux kernel, the core of any Linux operating system. Issues addressed include information leakage, privilege escalation, and use-after-free vulnerabilities.

RHSA-2022:6983: Red Hat Security Advisory: kernel security, bug fix, and enhancement update

An update for kernel is now available for Red Hat Enterprise Linux 8.4 Extended Update Support. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.This content is licensed under the Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by/4.0/). If you distribute this content, or a modified version of it, you must provide attribution to Red Hat Inc. and provide a link to the original. Related CVEs: * CVE-2021-45485: kernel: information leak in the IPv6 implementation * CVE-2021-45486: kernel: information leak in the IPv4 implementation * CVE-2022-2588: kernel: a use-after-free in cls_route filter implementation may lead to privilege escalation * CVE-2022-21123: hw: cpu: Incomplete cleanup of multi-core shared buffers (aka SBDR) * CV...

RHSA-2022:6991: Red Hat Security Advisory: kernel-rt security and bug fix update

An update for kernel-rt is now available for Red Hat Enterprise Linux 8.4 Extended Update Support. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.This content is licensed under the Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by/4.0/). If you distribute this content, or a modified version of it, you must provide attribution to Red Hat Inc. and provide a link to the original. Related CVEs: * CVE-2021-45485: kernel: information leak in the IPv6 implementation * CVE-2021-45486: kernel: information leak in the IPv4 implementation * CVE-2022-2588: kernel: a use-after-free in cls_route filter implementation may lead to privilege escalation * CVE-2022-21123: hw: cpu: Incomplete cleanup of multi-core shared buffers (aka SBDR) *...

CVE-2022-41686: en/security-disclosure/2022/2022-10.md · OpenHarmony/security - Gitee.com

OpenHarmony-v3.1.2 and prior versions, 3.0.6 and prior versions have an Out-of-bound memory read and write vulnerability in /dev/mmz_userdev device driver. The impact depends on the privileges of the attacker. The unprivileged process run on the device could read out-of-bound memory leading sensitive to information disclosure. The processes with system user UID run on the device would be able to write out-of-bound memory which could lead to unspecified memory corruption.

Red Hat Security Advisory 2022-6872-01

Red Hat Security Advisory 2022-6872-01 - The kernel packages contain the Linux kernel, the core of any Linux operating system. Issues addressed include privilege escalation and use-after-free vulnerabilities.

RHSA-2022:6875: Red Hat Security Advisory: kpatch-patch security update

An update is now available for Red Hat Enterprise Linux 8.1 Update Services for SAP Solutions. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.This content is licensed under the Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by/4.0/). If you distribute this content, or a modified version of it, you must provide attribution to Red Hat Inc. and provide a link to the original. Related CVEs: * CVE-2022-2588: kernel: a use-after-free in cls_route filter implementation may lead to privilege escalation

RHSA-2022:6872: Red Hat Security Advisory: kernel security update

An update for kernel is now available for Red Hat Enterprise Linux 8.1 Update Services for SAP Solutions. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.This content is licensed under the Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by/4.0/). If you distribute this content, or a modified version of it, you must provide attribution to Red Hat Inc. and provide a link to the original. Related CVEs: * CVE-2022-2588: kernel: a use-after-free in cls_route filter implementation may lead to privilege escalation * CVE-2022-21123: hw: cpu: Incomplete cleanup of multi-core shared buffers (aka SBDR) * CVE-2022-21125: hw: cpu: Incomplete cleanup of microarchitectural fill buffers (aka SBDS) * CVE-2022-21166: hw: cpu: Incomplete clea...

Red Hat Security Advisory 2022-6551-01

Red Hat Security Advisory 2022-6551-01 - The redhat-virtualization-host packages provide the Red Hat Virtualization Host. These packages include redhat-release-virtualization-host, ovirt-node, and rhev-hypervisor. Red Hat Virtualization Hosts are installed using a special build of Red Hat Enterprise Linux with only the packages required to host virtual machines. RHVH features a Cockpit user interface for monitoring the host's resources and performing administrative tasks. The ovirt-node-ng packages provide the Red Hat Virtualization Host. These packages include redhat-release-virtualization-host, ovirt-node, and rhev-hypervisor. Red Hat Virtualization Hosts are installed using a special build of Red Hat Enterprise Linux with only the packages required to host virtual machines. RHVH features a Cockpit user interface for monitoring the host's resources and performing administrative tasks. Issues addressed include denial of service, information leakage, privilege escalation, and use-after...

RHSA-2022:6551: Red Hat Security Advisory: Red Hat Virtualization security update

An update for redhat-release-virtualization-host, redhat-virtualization-host, and redhat-virtualization-host-productimg is now available for Red Hat Virtualization 4 for Red Hat Enterprise Linux 8. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.This content is licensed under the Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by/4.0/). If you distribute this content, or a modified version of it, you must provide attribution to Red Hat Inc. and provide a link to the original. Related CVEs: * CVE-2022-1012: kernel: Small table perturb size in the TCP source port generation algorithm can lead to information leak * CVE-2022-2132: dpdk: DoS when a Vhost header crosses more than two descriptors and exhausts all mbufs * CVE-2022-...

Ubuntu Security Notice USN-5588-1

Ubuntu Security Notice 5588-1 - Zhenpeng Lin discovered that the network packet scheduler implementation in the Linux kernel did not properly remove all references to a route filter before freeing it in some situations. A local attacker could use this to cause a denial of service or execute arbitrary code.

Kernel Live Patch Security Notice LSN-0089-1

Aaron Adams discovered that the netfilter subsystem in the Linux kernel did not properly handle the removal of stateful expressions in some situations, leading to a use-after-free vulnerability. Ziming Zhang discovered that the netfilter subsystem in the Linux kernel did not properly validate sets with multiple ranged fields. It was discovered that the implementation of POSIX timers in the Linux kernel did not properly clean up timers in some situations. Various other vulnerabilities were also discovered.

Ubuntu Security Notice USN-5582-1

Ubuntu Security Notice 5582-1 - Arthur Mongodin discovered that the netfilter subsystem in the Linux kernel did not properly perform data validation. A local attacker could use this to escalate privileges in certain situations. Zhenpeng Lin discovered that the network packet scheduler implementation in the Linux kernel did not properly remove all references to a route filter before freeing it in some situations. A local attacker could use this to cause a denial of service or execute arbitrary code.

"As Nasty as Dirty Pipe" — 8 Year Old Linux Kernel Vulnerability Uncovered

Details of an eight-year-old security vulnerability in the Linux kernel have emerged that the researchers say is "as nasty as Dirty Pipe." Dubbed DirtyCred by a group of academics from Northwestern University, the security weakness exploits a previously unknown flaw (CVE-2022-2588) to escalate privileges to the maximum level. "DirtyCred is a kernel exploitation concept that swaps unprivileged

Ubuntu Security Notice USN-5567-1

Ubuntu Security Notice 5567-1 - Zhenpeng Lin discovered that the network packet scheduler implementation in the Linux kernel did not properly remove all references to a route filter before freeing it in some situations. A local attacker could use this to cause a denial of service or execute arbitrary code. It was discovered that the netfilter subsystem of the Linux kernel did not prevent one nft object from referencing an nft set in another nft table, leading to a use-after-free vulnerability. A local attacker could use this to cause a denial of service or execute arbitrary code.

Ubuntu Security Notice USN-5567-1

Ubuntu Security Notice 5567-1 - Zhenpeng Lin discovered that the network packet scheduler implementation in the Linux kernel did not properly remove all references to a route filter before freeing it in some situations. A local attacker could use this to cause a denial of service or execute arbitrary code. It was discovered that the netfilter subsystem of the Linux kernel did not prevent one nft object from referencing an nft set in another nft table, leading to a use-after-free vulnerability. A local attacker could use this to cause a denial of service or execute arbitrary code.

Ubuntu Security Notice USN-5567-1

Ubuntu Security Notice 5567-1 - Zhenpeng Lin discovered that the network packet scheduler implementation in the Linux kernel did not properly remove all references to a route filter before freeing it in some situations. A local attacker could use this to cause a denial of service or execute arbitrary code. It was discovered that the netfilter subsystem of the Linux kernel did not prevent one nft object from referencing an nft set in another nft table, leading to a use-after-free vulnerability. A local attacker could use this to cause a denial of service or execute arbitrary code.

Ubuntu Security Notice USN-5566-1

Ubuntu Security Notice 5566-1 - Zhenpeng Lin discovered that the network packet scheduler implementation in the Linux kernel did not properly remove all references to a route filter before freeing it in some situations. A local attacker could use this to cause a denial of service or execute arbitrary code. It was discovered that the netfilter subsystem of the Linux kernel did not prevent one nft object from referencing an nft set in another nft table, leading to a use-after-free vulnerability. A local attacker could use this to cause a denial of service or execute arbitrary code.

Ubuntu Security Notice USN-5566-1

Ubuntu Security Notice 5566-1 - Zhenpeng Lin discovered that the network packet scheduler implementation in the Linux kernel did not properly remove all references to a route filter before freeing it in some situations. A local attacker could use this to cause a denial of service or execute arbitrary code. It was discovered that the netfilter subsystem of the Linux kernel did not prevent one nft object from referencing an nft set in another nft table, leading to a use-after-free vulnerability. A local attacker could use this to cause a denial of service or execute arbitrary code.

Ubuntu Security Notice USN-5566-1

Ubuntu Security Notice 5566-1 - Zhenpeng Lin discovered that the network packet scheduler implementation in the Linux kernel did not properly remove all references to a route filter before freeing it in some situations. A local attacker could use this to cause a denial of service or execute arbitrary code. It was discovered that the netfilter subsystem of the Linux kernel did not prevent one nft object from referencing an nft set in another nft table, leading to a use-after-free vulnerability. A local attacker could use this to cause a denial of service or execute arbitrary code.

Ubuntu Security Notice USN-5566-1

Ubuntu Security Notice 5566-1 - Zhenpeng Lin discovered that the network packet scheduler implementation in the Linux kernel did not properly remove all references to a route filter before freeing it in some situations. A local attacker could use this to cause a denial of service or execute arbitrary code. It was discovered that the netfilter subsystem of the Linux kernel did not prevent one nft object from referencing an nft set in another nft table, leading to a use-after-free vulnerability. A local attacker could use this to cause a denial of service or execute arbitrary code.

Ubuntu Security Notice USN-5566-1

Ubuntu Security Notice 5566-1 - Zhenpeng Lin discovered that the network packet scheduler implementation in the Linux kernel did not properly remove all references to a route filter before freeing it in some situations. A local attacker could use this to cause a denial of service or execute arbitrary code. It was discovered that the netfilter subsystem of the Linux kernel did not prevent one nft object from referencing an nft set in another nft table, leading to a use-after-free vulnerability. A local attacker could use this to cause a denial of service or execute arbitrary code.

Ubuntu Security Notice USN-5562-1

Ubuntu Security Notice 5562-1 - Zhenpeng Lin discovered that the network packet scheduler implementation in the Linux kernel did not properly remove all references to a route filter before freeing it in some situations. A local attacker could use this to cause a denial of service or execute arbitrary code. It was discovered that the netfilter subsystem of the Linux kernel did not prevent one nft object from referencing an nft set in another nft table, leading to a use-after-free vulnerability. A local attacker could use this to cause a denial of service or execute arbitrary code.

Ubuntu Security Notice USN-5562-1

Ubuntu Security Notice 5562-1 - Zhenpeng Lin discovered that the network packet scheduler implementation in the Linux kernel did not properly remove all references to a route filter before freeing it in some situations. A local attacker could use this to cause a denial of service or execute arbitrary code. It was discovered that the netfilter subsystem of the Linux kernel did not prevent one nft object from referencing an nft set in another nft table, leading to a use-after-free vulnerability. A local attacker could use this to cause a denial of service or execute arbitrary code.

Ubuntu Security Notice USN-5560-2

Ubuntu Security Notice 5560-2 - Zhenpeng Lin discovered that the network packet scheduler implementation in the Linux kernel did not properly remove all references to a route filter before freeing it in some situations. A local attacker could use this to cause a denial of service or execute arbitrary code. It was discovered that the netfilter subsystem of the Linux kernel did not prevent one nft object from referencing an nft set in another nft table, leading to a use-after-free vulnerability. A local attacker could use this to cause a denial of service or execute arbitrary code.

Ubuntu Security Notice USN-5560-2

Ubuntu Security Notice 5560-2 - Zhenpeng Lin discovered that the network packet scheduler implementation in the Linux kernel did not properly remove all references to a route filter before freeing it in some situations. A local attacker could use this to cause a denial of service or execute arbitrary code. It was discovered that the netfilter subsystem of the Linux kernel did not prevent one nft object from referencing an nft set in another nft table, leading to a use-after-free vulnerability. A local attacker could use this to cause a denial of service or execute arbitrary code.

Ubuntu Security Notice USN-5560-1

Ubuntu Security Notice 5560-1 - Zhenpeng Lin discovered that the network packet scheduler implementation in the Linux kernel did not properly remove all references to a route filter before freeing it in some situations. A local attacker could use this to cause a denial of service or execute arbitrary code. It was discovered that the netfilter subsystem of the Linux kernel did not prevent one nft object from referencing an nft set in another nft table, leading to a use-after-free vulnerability. A local attacker could use this to cause a denial of service or execute arbitrary code.

Ubuntu Security Notice USN-5560-1

Ubuntu Security Notice 5560-1 - Zhenpeng Lin discovered that the network packet scheduler implementation in the Linux kernel did not properly remove all references to a route filter before freeing it in some situations. A local attacker could use this to cause a denial of service or execute arbitrary code. It was discovered that the netfilter subsystem of the Linux kernel did not prevent one nft object from referencing an nft set in another nft table, leading to a use-after-free vulnerability. A local attacker could use this to cause a denial of service or execute arbitrary code.

Retbleed Fixed in Linux Kernel, Patch Delayed

Linus Torvalds says Retbleed has been addressed in the Linux kernel, but code complexity means the release will be delayed by a week to give more time for testing.

New 'Retbleed' Speculative Execution Attack Affects AMD and Intel CPUs

Security researchers have uncovered yet another vulnerability affecting numerous older AMD and Intel microprocessors that could bypass current defenses and result in Spectre-based speculative-execution attacks. Dubbed Retbleed by ETH Zurich researchers Johannes Wikner and Kaveh Razavi, the issues are tracked as CVE-2022-29900 (AMD) and CVE-2022-29901 (Intel), with the chipmakers releasing

New 'Retbleed' Speculative Execution Attack Affects AMD and Intel CPUs

Security researchers have uncovered yet another vulnerability affecting numerous older AMD and Intel microprocessors that could bypass current defenses and result in Spectre-based speculative-execution attacks. Dubbed Retbleed by ETH Zurich researchers Johannes Wikner and Kaveh Razavi, the issues are tracked as CVE-2022-29900 (AMD) and CVE-2022-29901 (Intel), with the chipmakers releasing

CVE-2022-29900: 407 - Xen Security Advisories

AMD microprocessor families 15h to 18h are affected by a new Spectre variant that is able to bypass their retpoline mitigation in the kernel to leak arbitrary data. An attacker with unprivileged user access can hijack return instructions to achieve arbitrary speculative code execution under certain microarchitecture-dependent conditions.

CVE-2022-29900: 407 - Xen Security Advisories

AMD microprocessor families 15h to 18h are affected by a new Spectre variant that is able to bypass their retpoline mitigation in the kernel to leak arbitrary data. An attacker with unprivileged user access can hijack return instructions to achieve arbitrary speculative code execution under certain microarchitecture-dependent conditions.

CVE-2022-29901: oss-security - Xen Security Advisory 407 v1 (CVE-2022-23816,CVE-2022-23825,CVE-2022-29900) - Retbleed

Intel microprocessor generations 6 to 8 are affected by a new Spectre variant that is able to bypass their retpoline mitigation in the kernel to leak arbitrary data. An attacker with unprivileged user access can hijack return instructions to achieve arbitrary speculative code execution under certain microarchitecture-dependent conditions.

CVE-2022-29901: oss-security - Xen Security Advisory 407 v1 (CVE-2022-23816,CVE-2022-23825,CVE-2022-29900) - Retbleed

Intel microprocessor generations 6 to 8 are affected by a new Spectre variant that is able to bypass their retpoline mitigation in the kernel to leak arbitrary data. An attacker with unprivileged user access can hijack return instructions to achieve arbitrary speculative code execution under certain microarchitecture-dependent conditions.

Packet Storm: Latest News

Zeek 6.0.9