RHSA-2024:5255 - Security Advisory

Topic

An update for kernel is now available for Red Hat Enterprise Linux 8.8 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 packages contain the Linux kernel, the core of any Linux operating system.

Security Fix(es):

• hw amd: Return Address Predictor vulnerability leading to information disclosure (AMD-SN-7005,CVE-2023-20569,RAS)
• kernel: tls: race between tx work scheduling and socket close (CVE-2024-26585)
• kernel: tls: handle backlogging of crypto requests (CVE-2024-26584)
• kernel: tls: race between async notify and socket close (CVE-2024-26583)
• kernel: gfs2: Fix kernel NULL pointer dereference in gfs2_rgrp_dump (CVE-2023-52448)
• kernel: vt: fix memory overlapping when deleting chars in the buffer (CVE-2022-48627)
• kernel: net/sched: act_ct: fix skb leak and crash on ooo frags (CVE-2023-52610)
• kernel: tcp: add sanity checks to rx zerocopy (CVE-2024-26640)
• kernel: fs/proc: do_task_stat: use sig->stats_lock to gather the threads/children stats (CVE-2024-26686)
• kernel: ext4: fix double-free of blocks due to wrong extents moved_len (CVE-2024-26704)
• kernel: ext4: avoid allocating blocks from corrupted group in ext4_mb_try_best_found() (CVE-2024-26773)
• kernel: arp: Prevent overflow in arp_req_get(). (CVE-2024-26733)
• kernel: NFSv4.2: fix nfs4_listxattr kernel BUG at mm/usercopy.c:102 (CVE-2024-26870)
• kernel: TIPC message reassembly use-after-free remote code execution vulnerability (CVE-2024-36886)
• kernel: Squashfs: check the inode number is not the invalid value of zero (CVE-2024-26982)
• kernel: mlxsw: spectrum_acl_tcam: Fix memory leak when canceling rehash work (CVE-2024-35852)
• kernel: tcp: properly terminate timers for kernel sockets (CVE-2024-35910)
• kernel: mm/hugetlb: fix missing hugetlb_lock for resv uncharge (CVE-2024-36000)
• kernel: i40e: fix vf may be used uninitialized in this function warning (CVE-2024-36020)
• kernel: net: CVE-2024-36971 kernel: UAF in network route management (CVE-2024-36971)
• kernel: net/mlx5: Discard command completions in internal error (CVE-2024-38555)
• kernel: net: bridge: xmit: make sure we have at least eth header len bytes (CVE-2024-38538)

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

• Red Hat Enterprise Linux for x86_64 - Extended Update Support 8.8 x86_64
• Red Hat Enterprise Linux for IBM z Systems - Extended Update Support 8.8 s390x
• Red Hat Enterprise Linux for Power, little endian - Extended Update Support 8.8 ppc64le
• Red Hat Enterprise Linux Server - TUS 8.8 x86_64
• Red Hat Enterprise Linux for ARM 64 - Extended Update Support 8.8 aarch64
• Red Hat Enterprise Linux Server for Power LE - Update Services for SAP Solutions 8.8 ppc64le
• Red Hat Enterprise Linux for x86_64 - Update Services for SAP Solutions 8.8 x86_64
• Red Hat CodeReady Linux Builder for x86_64 - Extended Update Support 8.8 x86_64
• Red Hat CodeReady Linux Builder for Power, little endian - Extended Update Support 8.8 ppc64le
• Red Hat CodeReady Linux Builder for ARM 64 - Extended Update Support 8.8 aarch64

Fixes

• BZ - 2207625 - CVE-2023-20569 hw amd: Return Address Predictor vulnerability leading to information disclosure
• BZ - 2265517 - CVE-2024-26585 kernel: tls: race between tx work scheduling and socket close
• BZ - 2265519 - CVE-2024-26584 kernel: tls: handle backlogging of crypto requests
• BZ - 2265520 - CVE-2024-26583 kernel: tls: race between async notify and socket close
• BZ - 2265653 - CVE-2023-52448 kernel: gfs2: Fix kernel NULL pointer dereference in gfs2_rgrp_dump
• BZ - 2267509 - CVE-2022-48627 kernel: vt: fix memory overlapping when deleting chars in the buffer
• BZ - 2270080 - CVE-2023-52610 kernel: net/sched: act_ct: fix skb leak and crash on ooo frags
• BZ - 2270100 - CVE-2024-26640 kernel: tcp: add sanity checks to rx zerocopy
• BZ - 2273109 - CVE-2024-26686 kernel: fs/proc: do_task_stat: use sig->stats_lock to gather the threads/children stats
• BZ - 2273174 - CVE-2024-26704 kernel: ext4: fix double-free of blocks due to wrong extents moved_len
• BZ - 2273236 - CVE-2024-26773 kernel: ext4: avoid allocating blocks from corrupted group in ext4_mb_try_best_found()
• BZ - 2273247 - CVE-2024-26733 kernel: arp: Prevent overflow in arp_req_get().
• BZ - 2275711 - CVE-2024-26870 kernel: NFSv4.2: fix nfs4_listxattr kernel BUG at mm/usercopy.c:102
• BZ - 2277238 - CVE-2024-36886 kernel: TIPC message reassembly use-after-free remote code execution vulnerability
• BZ - 2278337 - CVE-2024-26982 kernel: Squashfs: check the inode number is not the invalid value of zero
• BZ - 2281257 - CVE-2024-35852 kernel: mlxsw: spectrum_acl_tcam: Fix memory leak when canceling rehash work
• BZ - 2281641 - CVE-2024-35910 kernel: tcp: properly terminate timers for kernel sockets
• BZ - 2281968 - CVE-2024-36000 kernel: mm/hugetlb: fix missing hugetlb_lock for resv uncharge
• BZ - 2284400 - CVE-2024-36020 kernel: i40e: fix vf may be used uninitialized in this function warning
• BZ - 2292331 - CVE-2024-36971 kernel: net: CVE-2024-36971 kernel: UAF in network route management
• BZ - 2293444 - CVE-2024-38555 kernel: net/mlx5: Discard command completions in internal error
• BZ - 2293461 - CVE-2024-38538 kernel: net: bridge: xmit: make sure we have at least eth header len bytes

CVEs

• CVE-2022-48627
• CVE-2023-20569
• CVE-2023-52448
• CVE-2023-52610
• CVE-2024-26583
• CVE-2024-26584
• CVE-2024-26585
• CVE-2024-26640
• CVE-2024-26686
• CVE-2024-26704
• CVE-2024-26733
• CVE-2024-26773
• CVE-2024-26870
• CVE-2024-26982
• CVE-2024-35852
• CVE-2024-35910
• CVE-2024-36000
• CVE-2024-36020
• CVE-2024-36886
• CVE-2024-36971
• CVE-2024-38538
• CVE-2024-38555

References

• https://access.redhat.com/security/updates/classification/#important