Issued:
2024-03-12
Updated:
2024-03-12

RHSA-2024:1269 - Important: kernel-rt security update

Synopsis

Important: kernel-rt security update

Type/Severity

Security Advisory Important

Topic

An update for kernel-rt is now available for Red Hat Enterprise Linux 8.2 Telecommunications Update Service.

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):

  • UAF in nftables when nft_set_lookup_global triggered after handling named and anonymous sets in batch requests (CVE-2023-3390)

  • net/sched: sch_qfq component can be exploited if in qfq_change_agg function happens qfq_enqueue overhead (CVE-2023-3611)

  • net/sched: sch_hfsc UAF (CVE-2023-4623)

  • use-after-free in sch_qfq network scheduler (CVE-2023-4921)

  • use after free in nvmet_tcp_free_crypto in NVMe (CVE-2023-5178)

  • inactive elements in nft_pipapo_walk (CVE-2023-6817)

  • out-of-bounds write in qfq_change_class function (CVE-2023-31436)

  • nf_tables: stack-out-of-bounds-read in nft_byteorder_eval() (CVE-2023-35001)

  • IGB driver inadequate buffer size for frames larger than MTU (CVE-2023-45871)

  • ktls overwrites readonly memory pages when using function splice with a ktls socket as destination (CVE-2024-0646)

  • nfp: use-after-free in area_cache_get() (CVE-2022-3545)

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

  • Gather Data Sampling (GDS) side channel vulnerability (CVE-2022-40982)

  • null-ptr-deref vulnerabilities in sl_tx_timeout in drivers/net/slip (CVE-2022-41858)

  • fbcon: out-of-sync arrays in fbcon_mode_deleted due to wrong con2fb_map assignment (CVE-2023-38409)

  • use-after-free in l2cap_sock_release in net/bluetooth/l2cap_sock.c (CVE-2023-40283)

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.

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 Real Time for NFV - Telecommunications Update Service8.2x86_64
Red Hat Enterprise Linux for Real Time - Telecommunications Update Service8.2x86_64

Updated Packages

  • kernel-rt-debug-4.18.0-193.128.1.rt13.179.el8_2.x86_64.rpm
  • kernel-rt-debug-core-4.18.0-193.128.1.rt13.179.el8_2.x86_64.rpm
  • kernel-rt-debug-devel-4.18.0-193.128.1.rt13.179.el8_2.x86_64.rpm
  • kernel-rt-debug-debuginfo-4.18.0-193.128.1.rt13.179.el8_2.x86_64.rpm
  • kernel-rt-devel-4.18.0-193.128.1.rt13.179.el8_2.x86_64.rpm
  • kernel-rt-4.18.0-193.128.1.rt13.179.el8_2.x86_64.rpm
  • kernel-rt-kvm-4.18.0-193.128.1.rt13.179.el8_2.x86_64.rpm
  • kernel-rt-debug-modules-extra-4.18.0-193.128.1.rt13.179.el8_2.x86_64.rpm
  • kernel-rt-debug-kvm-4.18.0-193.128.1.rt13.179.el8_2.x86_64.rpm
  • kernel-rt-modules-4.18.0-193.128.1.rt13.179.el8_2.x86_64.rpm
  • kernel-rt-4.18.0-193.128.1.rt13.179.el8_2.src.rpm
  • kernel-rt-modules-extra-4.18.0-193.128.1.rt13.179.el8_2.x86_64.rpm
  • kernel-rt-debug-modules-4.18.0-193.128.1.rt13.179.el8_2.x86_64.rpm
  • kernel-rt-core-4.18.0-193.128.1.rt13.179.el8_2.x86_64.rpm
  • kernel-rt-debuginfo-4.18.0-193.128.1.rt13.179.el8_2.x86_64.rpm
  • kernel-rt-debuginfo-common-x86_64-4.18.0-193.128.1.rt13.179.el8_2.x86_64.rpm

Fixes

CVEs

References

Additional information