Issued:
2024-03-13
Updated:
2024-03-13

RHSA-2024:1306 - 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 9.0 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.

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):

  • memcg does not limit the number of POSIX file locks allowing memory exhaustion (CVE-2022-0480)

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

  • use-after-free in smb2_is_status_io_timeout() (CVE-2023-1192)

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

  • NULL pointer dereference in can_rcv_filter (CVE-2023-2166)

  • Slab-out-of-bound read in compare_netdev_and_ip (CVE-2023-2176)

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

  • out-of-bounds access in relay_file_read (CVE-2023-3268)

  • vmxnet3: NULL pointer dereference in vmxnet3_rq_cleanup() (CVE-2023-4459)

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

  • net/sched: cls_u32 component reference counter leak if tcf_change_indev() fails (CVE-2023-3609)

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

  • Race Condition leading to UAF in Unix Socket could happen in sk_receive_queue ()

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

  • use after free in unix_stream_sendpage (CVE-2023-4622)

  • bpf: Incorrect verifier pruning leads to unsafe code paths being incorrectly marked as safe (CVE-2023-2163)

  • A heap out-of-bounds write when function perf_read_group is called and sibling_list is smaller than its child's sibling_list (CVE-2023-5717)

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

  • use-after-free in IPv4 IGMP (CVE-2023-6932)

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

  • refcount leak in ctnetlink_create_conntrack() (CVE-2023-7192)

Bug Fix(es):

  • fbcon: out-of-sync arrays in fbcon_mode_deleted due to wrong con2fb_map assignment (JIRA:RHEL-1107)

  • out-of-bounds access in relay_file_read (JIRA:RHEL-1749)

  • vmxnet3: NULL pointer dereference in vmxnet3_rq_cleanup() (JIRA:RHEL-18085)

  • NULL pointer dereference in can_rcv_filter (JIRA:RHEL-19524)

  • update RT source tree to the latest RHEL-9.0.z Batch 15 (JIRA:RHEL-21555)

  • Gather Data Sampling (GDS) side channel vulnerability (JIRA:RHEL-9285)

  • A heap out-of-bounds write (JIRA:RHEL-18011)

  • Slab-out-of-bound read in compare_netdev_and_ip (JIRA:RHEL-19398)

  • A flaw leading to a use-after-free in area_cache_get() (JIRA:RHEL-19534)

  • Incorrect verifier pruning leads to unsafe code paths being incorrectly marked as safe (JIRA:RHEL-8980)

  • various flaws (JIRA:RHEL-16150)

  • refcount leak in ctnetlink_create_conntrack() (JIRA:RHEL-20311)

  • use-after-free in l2cap_sock_release in net/bluetooth/l2cap_sock.c (JIRA:RHEL-20502)

  • ktls overwrites readonly memory pages when using function splice with a ktls socket as destination (JIRA:RHEL-22095)

  • use-after-free in smb2_is_status_io_timeout() (JIRA:RHEL-15171)

  • use-after-free in IPv4 IGMP (JIRA:RHEL-21658)

  • memcg does not limit the number of POSIX file locks allowing memory exhaustion (JIRA:RHEL-8996)

  • GSM multiplexing race condition leads to privilege escalation (JIRA:RHEL-19968)

  • NULL pointer dereference in vmw_cmd_dx_define_query (JIRA:RHEL-22751)

  • kernel: sched/membarrier: reduce the ability to hammer on sys_membarrier (JIRA:RHEL-26381)

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 - Update Services for SAP Solutions9.0x86_64

Updated Packages

  • kernel-rt-debug-kvm-5.14.0-70.93.1.rt21.165.el9_0.x86_64.rpm
  • kernel-rt-debug-5.14.0-70.93.1.rt21.165.el9_0.x86_64.rpm
  • kernel-rt-kvm-5.14.0-70.93.1.rt21.165.el9_0.x86_64.rpm
  • kernel-rt-core-5.14.0-70.93.1.rt21.165.el9_0.x86_64.rpm
  • kernel-rt-5.14.0-70.93.1.rt21.165.el9_0.x86_64.rpm
  • kernel-rt-debug-core-5.14.0-70.93.1.rt21.165.el9_0.x86_64.rpm
  • kernel-rt-debug-debuginfo-5.14.0-70.93.1.rt21.165.el9_0.x86_64.rpm
  • kernel-rt-5.14.0-70.93.1.rt21.165.el9_0.src.rpm
  • kernel-rt-debug-modules-5.14.0-70.93.1.rt21.165.el9_0.x86_64.rpm
  • kernel-rt-devel-5.14.0-70.93.1.rt21.165.el9_0.x86_64.rpm
  • kernel-rt-debuginfo-common-x86_64-5.14.0-70.93.1.rt21.165.el9_0.x86_64.rpm
  • kernel-rt-debug-modules-extra-5.14.0-70.93.1.rt21.165.el9_0.x86_64.rpm
  • kernel-rt-debug-devel-5.14.0-70.93.1.rt21.165.el9_0.x86_64.rpm
  • kernel-rt-modules-5.14.0-70.93.1.rt21.165.el9_0.x86_64.rpm
  • kernel-rt-debuginfo-5.14.0-70.93.1.rt21.165.el9_0.x86_64.rpm
  • kernel-rt-modules-extra-5.14.0-70.93.1.rt21.165.el9_0.x86_64.rpm

Fixes

CVEs

References

Additional information