RHSA-2024:4740 - 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 Moderate. 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: Use after free bug in btsdio_remove due to race condition (CVE-2023-1989)
• kernel: KVM: SEV-ES / SEV-SNP VMGEXIT double fetch vulnerability (CVE-2023-4155)
• kernel: kvm: Avoid potential UAF in LPI translation cache (CVE-2024-26598)
• kernel: wifi: mac80211: fix potential key use-after-free (CVE-2023-52530)
• kernel: drm/amdgpu: use-after-free vulnerability (CVE-2024-26656)
• kernel: KVM: s390: vsie: fix race during shadow creation (CVE-2023-52639)
• kernel: ipv6: sr: fix possible use-after-free and null-ptr-deref (CVE-2024-26735)
• kernel: net: ip_tunnel: prevent perpetual headroom growth (CVE-2024-26804)
• kernel: Bluetooth: Avoid potential use-after-free in hci_error_reset (CVE-2024-26801)
• kernel: netfilter: nf_tables: use timestamp to check for set element timeout (CVE-2024-27397)
• kernel: net/mlx5e: fix a potential double-free in fs_any_create_groups (CVE-2023-52667)
• kernel: wifi: cfg80211: check A-MSDU format more carefully (CVE-2024-35937)
• kernel: net/mlx5: Properly link new fs rules into the tree (CVE-2024-35960)
• kernel: net: ena: Fix incorrect descriptor free behavior (CVE-2024-35958)
• kernel: net: qcom/emac: fix UAF in emac_remove (CVE-2021-47311)
• kernel: net: ti: fix UAF in tlan_remove_one (CVE-2021-47310)
• kernel: ethernet: hisilicon: hns: hns_dsaf_misc: fix a possible array overflow in hns_dsaf_ge_srst_by_port() (CVE-2021-47548)

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 - 2185945 - CVE-2023-1989 kernel: Use after free bug in btsdio_remove due to race condition
• BZ - 2213802 - CVE-2023-4155 kernel: KVM: SEV-ES / SEV-SNP VMGEXIT double fetch vulnerability
• BZ - 2265801 - CVE-2024-26598 kernel: kvm: Avoid potential UAF in LPI translation cache
• BZ - 2267787 - CVE-2023-52530 kernel: wifi: mac80211: fix potential key use-after-free
• BZ - 2272692 - CVE-2024-26656 kernel: drm/amdgpu: use-after-free vulnerability
• BZ - 2273080 - CVE-2023-52639 kernel: KVM: s390: vsie: fix race during shadow creation
• BZ - 2273278 - CVE-2024-26735 kernel: ipv6: sr: fix possible use-after-free and null-ptr-deref
• BZ - 2273423 - CVE-2024-26804 kernel: net: ip_tunnel: prevent perpetual headroom growth
• BZ - 2273429 - CVE-2024-26801 kernel: Bluetooth: Avoid potential use-after-free in hci_error_reset
• BZ - 2280434 - CVE-2024-27397 kernel: netfilter: nf_tables: use timestamp to check for set element timeout
• BZ - 2281350 - CVE-2023-52667 kernel: net/mlx5e: fix a potential double-free in fs_any_create_groups
• BZ - 2281821 - CVE-2024-35937 kernel: wifi: cfg80211: check A-MSDU format more carefully
• BZ - 2281920 - CVE-2024-35960 kernel: net/mlx5: Properly link new fs rules into the tree
• BZ - 2281925 - CVE-2024-35958 kernel: net: ena: Fix incorrect descriptor free behavior
• BZ - 2282471 - CVE-2021-47311 kernel: net: qcom/emac: fix UAF in emac_remove
• BZ - 2282472 - CVE-2021-47310 kernel: net: ti: fix UAF in tlan_remove_one
• BZ - 2283401 - CVE-2021-47548 kernel: ethernet: hisilicon: hns: hns_dsaf_misc: fix a possible array overflow in hns_dsaf_ge_srst_by_port()

CVEs

• CVE-2021-47310
• CVE-2021-47311
• CVE-2021-47548
• CVE-2023-1989
• CVE-2023-4155
• CVE-2023-52530
• CVE-2023-52639
• CVE-2023-52667
• CVE-2024-26598
• CVE-2024-26656
• CVE-2024-26735
• CVE-2024-26801
• CVE-2024-26804
• CVE-2024-27397
• CVE-2024-35937
• CVE-2024-35958
• CVE-2024-35960

References

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