RHSA-2024:5281 - Security Advisory

Topic

An update for kernel is now available for Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support, Red Hat Enterprise Linux 8.6 Update Services for SAP Solutions, and Red Hat Enterprise Linux 8.6 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 packages contain the Linux kernel, the core of any Linux operating system.

Security Fix(es):

• kernel:TCP-spoofed ghost ACKs and leak leak initial sequence number (CVE-2023-52881,RHV-2024-1001)
• kernel: uio: Fix use-after-free in uio_open (CVE-2023-52439)
• kernel: gfs2: Fix kernel NULL pointer dereference in gfs2_rgrp_dump (CVE-2023-52448)
• kernel: bnxt: prevent skb UAF after handing over to PTP worker (CVE-2022-48637)
• kernel: dmaengine/idxd: hardware erratum allows potential security problem with direct access by untrusted application (CVE-2024-21823)
• kernel: mlxsw: spectrum_acl_tcam: Fix memory leak when canceling rehash work (CVE-2024-35852)
• kernel: hwmon: (w83792d) Fix NULL pointer dereference by removing unnecessary structure field (CVE-2021-47385)
• kernel: net: qcom/emac: fix UAF in emac_remove (CVE-2021-47311)
• kernel: proc/vmcore: fix clearing user buffer by properly using clear_user() (CVE-2021-47566)
• kernel: rtnetlink: Correct nested IFLA_VF_VLAN_LIST attribute validation (CVE-2024-36017)
• kernel: net: CVE-2024-36971 kernel: UAF in network route management (CVE-2024-36971)
• kernel: ionic: fix use after netif_napi_del() (CVE-2024-39502)
• kernel: SUNRPC: Fix UAF in svc_tcp_listen_data_ready() (CVE-2023-52885)
• kernel: NFSD: Fix the behavior of READ near OFFSET_MAX (CVE-2022-48827)
• kernel: NFSD: Fix ia_size underflow (CVE-2022-48828)
• kernel: NFSD: Fix NFSv3 SETATTR/CREATE's handling of large file sizes (CVE-2022-48829)
• kernel: virtio-net: tap: mlx5_core short frame denial of service (CVE-2024-41090)
• kernel: virtio-net: tun: mlx5_core short frame denial of service (CVE-2024-41091)

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 Life Cycle Long Life 8.6 x86_64
• Red Hat Enterprise Linux Server - AUS 8.6 x86_64
• Red Hat Enterprise Linux Server - TUS 8.6 x86_64
• Red Hat Enterprise Linux Server for Power LE - Update Services for SAP Solutions 8.6 ppc64le
• Red Hat Enterprise Linux for x86_64 - Update Services for SAP Solutions 8.6 x86_64
• Red Hat Enterprise Linux for ARM 64 - Extended Life Cycle Long Life 8.6 aarch64
• Red Hat Enterprise Linux for Power, little endian - Extended Life Cycle Long Life 8.6 ppc64le
• Red Hat Enterprise Linux for IBM z Systems - Extended Life Cycle Long Life 8.6 s390x

Fixes

• BZ - 2258875 - CVE-2023-52881 kernel:TCP-spoofed ghost ACKs and leak leak initial sequence number
• BZ - 2265271 - CVE-2023-52439 kernel: uio: Fix use-after-free in uio_open
• BZ - 2265653 - CVE-2023-52448 kernel: gfs2: Fix kernel NULL pointer dereference in gfs2_rgrp_dump
• BZ - 2277831 - CVE-2022-48637 kernel: bnxt: prevent skb UAF after handing over to PTP worker
• BZ - 2278989 - CVE-2024-21823 kernel: dmaengine/idxd: hardware erratum allows potential security problem with direct access by untrusted application
• BZ - 2281257 - CVE-2024-35852 kernel: mlxsw: spectrum_acl_tcam: Fix memory leak when canceling rehash work
• BZ - 2282355 - CVE-2021-47385 kernel: hwmon: (w83792d) Fix NULL pointer dereference by removing unnecessary structure field
• BZ - 2282471 - CVE-2021-47311 kernel: net: qcom/emac: fix UAF in emac_remove
• BZ - 2283463 - CVE-2021-47566 kernel: proc/vmcore: fix clearing user buffer by properly using clear_user()
• BZ - 2284417 - CVE-2024-36017 kernel: rtnetlink: Correct nested IFLA_VF_VLAN_LIST attribute validation
• BZ - 2292331 - CVE-2024-36971 kernel: net: CVE-2024-36971 kernel: UAF in network route management
• BZ - 2297474 - CVE-2024-39502 kernel: ionic: fix use after netif_napi_del()
• BZ - 2297730 - CVE-2023-52885 kernel: SUNRPC: Fix UAF in svc_tcp_listen_data_ready()
• BZ - 2298166 - CVE-2022-48827 kernel: NFSD: Fix the behavior of READ near OFFSET_MAX
• BZ - 2298167 - CVE-2022-48828 kernel: NFSD: Fix ia_size underflow
• BZ - 2298168 - CVE-2022-48829 kernel: NFSD: Fix NFSv3 SETATTR/CREATE's handling of large file sizes
• BZ - 2299240 - CVE-2024-41090 kernel: virtio-net: tap: mlx5_core short frame denial of service
• BZ - 2299336 - CVE-2024-41091 kernel: virtio-net: tun: mlx5_core short frame denial of service

CVEs

• CVE-2021-47311
• CVE-2021-47385
• CVE-2021-47566
• CVE-2022-48637
• CVE-2022-48827
• CVE-2022-48828
• CVE-2022-48829
• CVE-2023-52439
• CVE-2023-52448
• CVE-2023-52881
• CVE-2023-52885
• CVE-2024-21823
• CVE-2024-35852
• CVE-2024-36017
• CVE-2024-36971
• CVE-2024-39502
• CVE-2024-41090
• CVE-2024-41091

References

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