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Red Hat Security Advisory 2022-6248-01

Red Hat Security Advisory 2022-6248-01 - The kernel-rt packages provide the Real Time Linux Kernel, which enables fine-tuning for systems with extremely high determinism requirements. Issues addressed include an information leakage vulnerability.

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====================================================================
Red Hat Security Advisory

Synopsis: Moderate: kernel-rt security and bug fix update
Advisory ID: RHSA-2022:6248-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2022:6248
Issue date: 2022-08-30
CVE Names: CVE-2022-0494 CVE-2022-1353
====================================================================

  1. Summary:

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.

  1. Relevant releases/architectures:

Red Hat Enterprise Linux Real Time EUS (v.8.4) - x86_64
Red Hat Enterprise Linux Real Time for NFV EUS (v.8.4) - x86_64

  1. 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)
  1. 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.

  1. Bugs fixed (https://bugzilla.redhat.com/):

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

  1. Package List:

Red Hat Enterprise Linux Real Time for NFV EUS (v.8.4):

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

x86_64:
kernel-rt-4.18.0-305.62.1.rt7.134.el8_4.x86_64.rpm
kernel-rt-core-4.18.0-305.62.1.rt7.134.el8_4.x86_64.rpm
kernel-rt-debug-4.18.0-305.62.1.rt7.134.el8_4.x86_64.rpm
kernel-rt-debug-core-4.18.0-305.62.1.rt7.134.el8_4.x86_64.rpm
kernel-rt-debug-debuginfo-4.18.0-305.62.1.rt7.134.el8_4.x86_64.rpm
kernel-rt-debug-devel-4.18.0-305.62.1.rt7.134.el8_4.x86_64.rpm
kernel-rt-debug-kvm-4.18.0-305.62.1.rt7.134.el8_4.x86_64.rpm
kernel-rt-debug-modules-4.18.0-305.62.1.rt7.134.el8_4.x86_64.rpm
kernel-rt-debug-modules-extra-4.18.0-305.62.1.rt7.134.el8_4.x86_64.rpm
kernel-rt-debuginfo-4.18.0-305.62.1.rt7.134.el8_4.x86_64.rpm
kernel-rt-debuginfo-common-x86_64-4.18.0-305.62.1.rt7.134.el8_4.x86_64.rpm
kernel-rt-devel-4.18.0-305.62.1.rt7.134.el8_4.x86_64.rpm
kernel-rt-kvm-4.18.0-305.62.1.rt7.134.el8_4.x86_64.rpm
kernel-rt-modules-4.18.0-305.62.1.rt7.134.el8_4.x86_64.rpm
kernel-rt-modules-extra-4.18.0-305.62.1.rt7.134.el8_4.x86_64.rpm

Red Hat Enterprise Linux Real Time EUS (v.8.4):

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

x86_64:
kernel-rt-4.18.0-305.62.1.rt7.134.el8_4.x86_64.rpm
kernel-rt-core-4.18.0-305.62.1.rt7.134.el8_4.x86_64.rpm
kernel-rt-debug-4.18.0-305.62.1.rt7.134.el8_4.x86_64.rpm
kernel-rt-debug-core-4.18.0-305.62.1.rt7.134.el8_4.x86_64.rpm
kernel-rt-debug-debuginfo-4.18.0-305.62.1.rt7.134.el8_4.x86_64.rpm
kernel-rt-debug-devel-4.18.0-305.62.1.rt7.134.el8_4.x86_64.rpm
kernel-rt-debug-modules-4.18.0-305.62.1.rt7.134.el8_4.x86_64.rpm
kernel-rt-debug-modules-extra-4.18.0-305.62.1.rt7.134.el8_4.x86_64.rpm
kernel-rt-debuginfo-4.18.0-305.62.1.rt7.134.el8_4.x86_64.rpm
kernel-rt-debuginfo-common-x86_64-4.18.0-305.62.1.rt7.134.el8_4.x86_64.rpm
kernel-rt-devel-4.18.0-305.62.1.rt7.134.el8_4.x86_64.rpm
kernel-rt-modules-4.18.0-305.62.1.rt7.134.el8_4.x86_64.rpm
kernel-rt-modules-extra-4.18.0-305.62.1.rt7.134.el8_4.x86_64.rpm

These packages are GPG signed by Red Hat for security. Our key and
details on how to verify the signature are available from
https://access.redhat.com/security/team/key/

  1. References:

https://access.redhat.com/security/cve/CVE-2022-0494
https://access.redhat.com/security/cve/CVE-2022-1353
https://access.redhat.com/security/updates/classification/#moderate

  1. Contact:

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

Copyright 2022 Red Hat, Inc.
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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-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-2022-1353: af_key: add __GFP_ZERO flag for compose_sadb_supported in function pf… · torvalds/linux@9a564bc

A vulnerability was found in the pfkey_register function in net/key/af_key.c in the Linux kernel. This flaw allows a local, unprivileged user to gain access to kernel memory, leading to a system crash or a leak of internal kernel information.

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.

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