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RHSA-2022:6248: 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 Moderate. 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
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Issued:

2022-08-30

Updated:

2022-08-30

RHSA-2022:6248 - Security Advisory

  • Overview
  • Updated Packages

Synopsis

Moderate: kernel-rt security and bug fix update

Type/Severity

Security Advisory: Moderate

Red Hat Insights patch analysis

Identify and remediate systems affected by this advisory.

View affected systems

Topic

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 Moderate. 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.

Description

The kernel-rt packages provide the Real Time Linux Kernel, which enables fine-tuning for systems with extremely high determinism requirements.

Security Fix(es):

  • information leak in scsi_ioctl() (CVE-2022-0494)
  • a kernel-info-leak issue in pfkey_register (CVE-2022-1353)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

Bug Fix(es):

  • update RT source tree to the RHEL-8.4.z11 source tree (BZ#2106751)

Solution

For details on how to apply this update, which includes the changes described in this advisory, refer to:

https://access.redhat.com/articles/11258

The system must be rebooted for this update to take effect.

Affected Products

  • Red Hat Enterprise Linux for Real Time - Telecommunications Update Service 8.4 x86_64
  • Red Hat Enterprise Linux for Real Time for NFV - Telecommunications Update Service 8.4 x86_64

Fixes

  • BZ - 2039448 - CVE-2022-0494 kernel: information leak in scsi_ioctl()
  • BZ - 2066819 - CVE-2022-1353 Kernel: A kernel-info-leak issue in pfkey_register

Red Hat Enterprise Linux for Real Time - Telecommunications Update Service 8.4

SRPM

kernel-rt-4.18.0-305.62.1.rt7.134.el8_4.src.rpm

SHA-256: 8f1de9e81daf82a50ea4853a87f85af83e233110cdff41b1781f3ae1e65ac0d1

x86_64

kernel-rt-4.18.0-305.62.1.rt7.134.el8_4.x86_64.rpm

SHA-256: 1ae934aacf7d8e24283fece00965e80da6a6f24b2f5fe23c04cfca79071ebe85

kernel-rt-core-4.18.0-305.62.1.rt7.134.el8_4.x86_64.rpm

SHA-256: 79ab5506c2a8824509943ab65b87dcf239c6456086fcb43cb1f562f0bed5a19c

kernel-rt-debug-4.18.0-305.62.1.rt7.134.el8_4.x86_64.rpm

SHA-256: d1135804776c5a125f4bdbecd5d1e42de61c3766766e27e56fb640b53aa3e1c6

kernel-rt-debug-core-4.18.0-305.62.1.rt7.134.el8_4.x86_64.rpm

SHA-256: 9b3c311b2d359d270ef976d1fdbcdfd6f3fa52641cf8af60b0cfad055a563f99

kernel-rt-debug-debuginfo-4.18.0-305.62.1.rt7.134.el8_4.x86_64.rpm

SHA-256: 45df6321262293867a2b8a45fad3abc2db2121320fc7afdf75c9c3c719478881

kernel-rt-debug-devel-4.18.0-305.62.1.rt7.134.el8_4.x86_64.rpm

SHA-256: 0707ed3e4f97bffdff29d993e07a77341a873d4f8fd10ef6ed605de504923b90

kernel-rt-debug-modules-4.18.0-305.62.1.rt7.134.el8_4.x86_64.rpm

SHA-256: 6ca29ca52ab31afc3987dc47c45df78c6cb9d41cba4db71e2141d49fb041140f

kernel-rt-debug-modules-extra-4.18.0-305.62.1.rt7.134.el8_4.x86_64.rpm

SHA-256: 63fefe78c20aad6077c1135ebea063c51adff67e020b339ee03df9071e1d0133

kernel-rt-debuginfo-4.18.0-305.62.1.rt7.134.el8_4.x86_64.rpm

SHA-256: 6be1ac8dd0e042d91a0ded329dbdf312afe21ffcec2b05088ce2f52ea23bfd89

kernel-rt-debuginfo-common-x86_64-4.18.0-305.62.1.rt7.134.el8_4.x86_64.rpm

SHA-256: 8f0dbfa95dae6be9ff086b374a647144b17bbda3f8e00de592c0a2367978937e

kernel-rt-devel-4.18.0-305.62.1.rt7.134.el8_4.x86_64.rpm

SHA-256: 8e585705c1e6a0c48219895e7bb37d42df2d5d2572ae4e394fdb4b1b3df71244

kernel-rt-modules-4.18.0-305.62.1.rt7.134.el8_4.x86_64.rpm

SHA-256: f35b98c5237b3f179c9b5f6e66778051b96a291ec07acb077ca20f5a4b4927a3

kernel-rt-modules-extra-4.18.0-305.62.1.rt7.134.el8_4.x86_64.rpm

SHA-256: 6a189a6014c0c00fd2b846d0dada9ce2801df5d22d22a6c93cfc08fbf8b8828b

Red Hat Enterprise Linux for Real Time for NFV - Telecommunications Update Service 8.4

SRPM

kernel-rt-4.18.0-305.62.1.rt7.134.el8_4.src.rpm

SHA-256: 8f1de9e81daf82a50ea4853a87f85af83e233110cdff41b1781f3ae1e65ac0d1

x86_64

kernel-rt-4.18.0-305.62.1.rt7.134.el8_4.x86_64.rpm

SHA-256: 1ae934aacf7d8e24283fece00965e80da6a6f24b2f5fe23c04cfca79071ebe85

kernel-rt-core-4.18.0-305.62.1.rt7.134.el8_4.x86_64.rpm

SHA-256: 79ab5506c2a8824509943ab65b87dcf239c6456086fcb43cb1f562f0bed5a19c

kernel-rt-debug-4.18.0-305.62.1.rt7.134.el8_4.x86_64.rpm

SHA-256: d1135804776c5a125f4bdbecd5d1e42de61c3766766e27e56fb640b53aa3e1c6

kernel-rt-debug-core-4.18.0-305.62.1.rt7.134.el8_4.x86_64.rpm

SHA-256: 9b3c311b2d359d270ef976d1fdbcdfd6f3fa52641cf8af60b0cfad055a563f99

kernel-rt-debug-debuginfo-4.18.0-305.62.1.rt7.134.el8_4.x86_64.rpm

SHA-256: 45df6321262293867a2b8a45fad3abc2db2121320fc7afdf75c9c3c719478881

kernel-rt-debug-devel-4.18.0-305.62.1.rt7.134.el8_4.x86_64.rpm

SHA-256: 0707ed3e4f97bffdff29d993e07a77341a873d4f8fd10ef6ed605de504923b90

kernel-rt-debug-kvm-4.18.0-305.62.1.rt7.134.el8_4.x86_64.rpm

SHA-256: eaa28e3d5a2c1e4c34ac7fa51ac0db37e338f36c8b652fa58ea3ad51e05ebb9f

kernel-rt-debug-modules-4.18.0-305.62.1.rt7.134.el8_4.x86_64.rpm

SHA-256: 6ca29ca52ab31afc3987dc47c45df78c6cb9d41cba4db71e2141d49fb041140f

kernel-rt-debug-modules-extra-4.18.0-305.62.1.rt7.134.el8_4.x86_64.rpm

SHA-256: 63fefe78c20aad6077c1135ebea063c51adff67e020b339ee03df9071e1d0133

kernel-rt-debuginfo-4.18.0-305.62.1.rt7.134.el8_4.x86_64.rpm

SHA-256: 6be1ac8dd0e042d91a0ded329dbdf312afe21ffcec2b05088ce2f52ea23bfd89

kernel-rt-debuginfo-common-x86_64-4.18.0-305.62.1.rt7.134.el8_4.x86_64.rpm

SHA-256: 8f0dbfa95dae6be9ff086b374a647144b17bbda3f8e00de592c0a2367978937e

kernel-rt-devel-4.18.0-305.62.1.rt7.134.el8_4.x86_64.rpm

SHA-256: 8e585705c1e6a0c48219895e7bb37d42df2d5d2572ae4e394fdb4b1b3df71244

kernel-rt-kvm-4.18.0-305.62.1.rt7.134.el8_4.x86_64.rpm

SHA-256: bd94fd95493e6dc901d589e1c91090b4dae4453b224cd15aa3cb7e8cb6652966

kernel-rt-modules-4.18.0-305.62.1.rt7.134.el8_4.x86_64.rpm

SHA-256: f35b98c5237b3f179c9b5f6e66778051b96a291ec07acb077ca20f5a4b4927a3

kernel-rt-modules-extra-4.18.0-305.62.1.rt7.134.el8_4.x86_64.rpm

SHA-256: 6a189a6014c0c00fd2b846d0dada9ce2801df5d22d22a6c93cfc08fbf8b8828b

The Red Hat security contact is [email protected]. More contact details at https://access.redhat.com/security/team/contact/.

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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.

RHSA-2022:6002: Red Hat Security Advisory: kernel-rt security and bug fix update

An update for kernel-rt is now available for Red Hat Enterprise Linux 9. 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 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-2022-1055: kernel: use-after-free in tc_new_tfilter() in net/sched/cls_api.c

RHSA-2022:6003: Red Hat Security Advisory: kernel security, bug fix, and enhancement update

An update for kernel is now available for Red Hat Enterprise Linux 9. 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 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-2022-1055: kernel: use-after-free in tc_new_tfilter() in net/sched/cls_api.c

RHSA-2022:5998: Red Hat Security Advisory: kernel security and bug fix update

An update for kernel is now available for Red Hat Enterprise Linux 8.2 Extended Update Support. 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 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-2022-1353: Kernel: A kernel-info-leak issue in pfkey_register

Red Hat Security Advisory 2022-5934-01

Red Hat Security Advisory 2022-5934-01 - The kernel-rt packages provide the Real Time Linux Kernel, which enables fine-tuning for systems with extremely high determinism requirements.

RHSA-2022:5934: Red Hat Security Advisory: kernel-rt security and bug fix update

An update for kernel-rt is now available for Red Hat Enterprise Linux 8.2 Extended Update Support. 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 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-2022-1353: Kernel: A kernel-info-leak issue in pfkey_register

Ubuntu Security Notice USN-5541-1

Ubuntu Security Notice 5541-1 - Eric Biederman discovered that the cgroup process migration implementation in the Linux kernel did not perform permission checks correctly in some situations. A local attacker could possibly use this to gain administrative privileges. Jann Horn discovered that the FUSE file system in the Linux kernel contained a use-after-free vulnerability. A local attacker could use this to cause a denial of service or possibly execute arbitrary code.

Ubuntu Security Notice USN-5515-1

Ubuntu Security Notice 5515-1 - Eric Biederman discovered that the cgroup process migration implementation in the Linux kernel did not perform permission checks correctly in some situations. A local attacker could possibly use this to gain administrative privileges. Jann Horn discovered that the FUSE file system in the Linux kernel contained a use-after-free vulnerability. A local attacker could use this to cause a denial of service or possibly execute arbitrary code.

Ubuntu Security Notice USN-5513-1

Ubuntu Security Notice 5513-1 - Norbert Slusarek discovered a race condition in the CAN BCM networking protocol of the Linux kernel leading to multiple use-after-free vulnerabilities. A local attacker could use this issue to execute arbitrary code. Likang Luo discovered that a race condition existed in the Bluetooth subsystem of the Linux kernel, leading to a use-after-free vulnerability. A local attacker could use this to cause a denial of service or possibly execute arbitrary code.

Ubuntu Security Notice USN-5505-1

Ubuntu Security Notice 5505-1 - Norbert Slusarek discovered a race condition in the CAN BCM networking protocol of the Linux kernel leading to multiple use-after-free vulnerabilities. A local attacker could use this issue to execute arbitrary code. Likang Luo discovered that a race condition existed in the Bluetooth subsystem of the Linux kernel, leading to a use-after-free vulnerability. A local attacker could use this to cause a denial of service or possibly execute arbitrary code.

Ubuntu Security Notice USN-5500-1

Ubuntu Security Notice 5500-1 - Eric Biederman discovered that the cgroup process migration implementation in the Linux kernel did not perform permission checks correctly in some situations. A local attacker could possibly use this to gain administrative privileges. Lin Ma discovered that the NFC Controller Interface implementation in the Linux kernel contained a race condition, leading to a use-after-free vulnerability. A local attacker could use this to cause a denial of service or possibly execute arbitrary code.

Ubuntu Security Notice USN-5469-1

Ubuntu Security Notice 5469-1 - It was discovered that the Linux kernel did not properly restrict access to the kernel debugger when booted in secure boot environments. A privileged attacker could use this to bypass UEFI Secure Boot restrictions. 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. A local attacker could use this to cause a denial of service or execute arbitrary code.

Ubuntu Security Notice USN-5467-1

Ubuntu Security Notice 5467-1 - It was discovered that the Linux kernel did not properly restrict access to the kernel debugger when booted in secure boot environments. A privileged attacker could use this to bypass UEFI Secure Boot restrictions. 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. A local attacker could use this to cause a denial of service or execute arbitrary code.

CVE-2022-0494: Invalid Bug ID

A kernel information leak flaw was identified in the scsi_ioctl function in drivers/scsi/scsi_ioctl.c in the Linux kernel. This flaw allows a local attacker with a special user privilege (CAP_SYS_ADMIN or CAP_SYS_RAWIO) to create issues with confidentiality.