Issued:
2024-04-02
Updated:
2024-04-02

RHSA-2024:1614 - Important: kernel-rt security and bug fix update

Synopsis

Important: kernel-rt security and bug fix update

Type/Severity

Security Advisory Important

Topic

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.

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):

  • kernel: vmwgfx: NULL pointer dereference in vmw_cmd_dx_define_query (CVE-2022-38096)

  • kernel: Out of boundary write in perf_read_group() as result of overflow a perf_event's read_size (CVE-2023-6931)

  • kernel: GSM multiplexing race condition leads to privilege escalation (CVE-2023-6546,ZDI-CAN-20527)

  • kernel: CIFS Filesystem Decryption Improper Input Validation Remote Code Execution Vulnerability in function receive_encrypted_standard of client (CVE-2024-0565)

  • kernel: use-after-free in amdgpu_cs_wait_all_fences in drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c (CVE-2023-51042)

  • kernel: ext4: kernel bug in ext4_write_inline_data_end() (CVE-2021-33631)

  • kernel: nf_tables: use-after-free vulnerability in the nft_verdict_init() function (CVE-2024-1086)

Bug Fix(es):

  • kernel-rt: update RT source tree to the latest RHEL-8.9.z3 Batch (JIRA:RHEL-23853)

  • kernel-rt: kernel: nf_tables: use-after-free vulnerability in the nft_verdict_init() function (JIRA:RHEL-24015)

  • kernel-rt: kernel: vmxgfx: NULL pointer dereference in vmw_cmd_dx_define_query (JIRA:RHEL-22758)

  • kernel-rt: kernel: CIFS Filesystem Decryption Improper Input Validation Remote Code Execution Vulnerability in function receive_encrypted_standard of client (JIRA:RHEL-22080)

  • kernel-rt: kernel: Out of boundary write in perf_read_group() as result of overflow a perf_event's read_size (JIRA:RHEL-22933)

  • kernel-rt: kernel: use-after-free in amdgpu_cs_wait_all_fences in drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c (JIRA:RHEL-24498)

  • kernel-rt: kernel: GSM multiplexing race condition leads to privilege escalation (JIRA:RHEL-19966)

  • kernel-rt: kernel: ext4: kernel bug in ext4_write_inline_data_end() (JIRA:RHEL-26334)

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

ProductVersionArch
Red Hat Enterprise Linux for x86_64 - Extended Life Cycle8.10x86_64
Red Hat Enterprise Linux for Real Time8x86_64
Red Hat Enterprise Linux for Real Time for NFV8x86_64

Updated Packages

  • kernel-rt-4.18.0-513.24.1.rt7.326.el8_9.x86_64.rpm
  • kernel-rt-debug-kvm-4.18.0-513.24.1.rt7.326.el8_9.x86_64.rpm
  • kernel-rt-debug-4.18.0-513.24.1.rt7.326.el8_9.x86_64.rpm
  • kernel-rt-core-4.18.0-513.24.1.rt7.326.el8_9.x86_64.rpm
  • kernel-rt-devel-4.18.0-513.24.1.rt7.326.el8_9.x86_64.rpm
  • kernel-rt-4.18.0-513.24.1.rt7.326.el8_9.src.rpm
  • kernel-rt-debug-modules-extra-4.18.0-513.24.1.rt7.326.el8_9.x86_64.rpm
  • kernel-rt-kvm-4.18.0-513.24.1.rt7.326.el8_9.x86_64.rpm
  • kernel-rt-debug-debuginfo-4.18.0-513.24.1.rt7.326.el8_9.x86_64.rpm
  • kernel-rt-debuginfo-4.18.0-513.24.1.rt7.326.el8_9.x86_64.rpm
  • kernel-rt-modules-4.18.0-513.24.1.rt7.326.el8_9.x86_64.rpm
  • kernel-rt-debuginfo-common-x86_64-4.18.0-513.24.1.rt7.326.el8_9.x86_64.rpm
  • kernel-rt-modules-extra-4.18.0-513.24.1.rt7.326.el8_9.x86_64.rpm
  • kernel-rt-debug-devel-4.18.0-513.24.1.rt7.326.el8_9.x86_64.rpm
  • kernel-rt-debug-core-4.18.0-513.24.1.rt7.326.el8_9.x86_64.rpm
  • kernel-rt-debug-modules-4.18.0-513.24.1.rt7.326.el8_9.x86_64.rpm

Fixes

CVEs

References

Additional information