RHSA-2024:6206 - 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):

• kernel:TCP-spoofed ghost ACKs and leak leak initial sequence number (CVE-2023-52881,RHV-2024-1001)
• kernel: ipc/mqueue, msg, sem: avoid relying on a stack reference past its expiry (CVE-2021-47069)
• kernel: drm: Don't unref the same fb many times by mistake due to deadlock handling (CVE-2023-52486)
• kernel: pstore/ram: Fix crash when setting number of cpus to an odd number (CVE-2023-52619)
• kernel: mm/writeback: fix possible divide-by-zero in wb_dirty_limits(), again (CVE-2024-26720)
• kernel: vfio/pci: Lock external INTx masking ops (CVE-2024-26810)
• kernel: igc: avoid returning frame twice in XDP_REDIRECT (CVE-2024-26853)
• kernel: net/ipv6: avoid possible UAF in ip6_route_mpath_notify() (CVE-2024-26852)
• kernel: fs: sysfs: Fix reference leak in sysfs_break_active_protection() (CVE-2024-26993)
• kernel: crypto: qat - resolve race condition during AER recovery (CVE-2024-26974)
• kernel: dmaengine/idxd: hardware erratum allows potential security problem with direct access by untrusted application (CVE-2024-21823)
• kernel: wifi: mac80211: check/clear fast rx for non-4addr sta VLAN changes (CVE-2024-35789)
• kernel: wifi: iwlwifi: dbg-tlv: ensure NUL termination (CVE-2024-35845)
• kernel: hwmon: (w83792d) Fix NULL pointer dereference by removing unnecessary structure field (CVE-2021-47385)
• kernel: net: fix out-of-bounds access in ops_init (CVE-2024-36883)
• kernel: rtnetlink: Correct nested IFLA_VF_VLAN_LIST attribute validation (CVE-2024-36017)
• kernel: wifi: nl80211: don't free NULL coalescing rule (CVE-2024-36941)
• kernel: tcp: Use refcount_inc_not_zero() in tcp_twsk_unique(). (CVE-2024-36904)
• kernel: net: bridge: mst: fix vlan use-after-free (CVE-2024-36979)
• kernel: drm/amdgpu: Fix possible null pointer dereference (CVE-2023-52883)
• kernel: phylib: fix potential use-after-free (CVE-2022-48754)
• kernel: net: amd-xgbe: Fix skb data length underflow (CVE-2022-48743)
• kernel: af_unix: Fix data races in unix_release_sock/unix_stream_sendmsg (CVE-2024-38596)
• kernel: net: fix information leakage in /proc/net/ptype (CVE-2022-48757)
• kernel: r8169: Fix possible ring buffer corruption on fragmented Tx packets. (CVE-2024-38586)
• kernel: gfs2: Fix potential glock use-after-free on unmount (CVE-2024-38570)
• kernel: bnxt_re: avoid shift undefined behavior in bnxt_qplib_alloc_init_hwq (CVE-2024-38540)
• kernel: ipvlan: Dont Use skb->sk in ipvlan_process_v{4,6}_outbound (CVE-2024-33621)
• kernel: tcp: Fix shift-out-of-bounds in dctcp_update_alpha(). (CVE-2024-37356)
• kernel: tls: fix missing memory barrier in tls_init (CVE-2024-36489)
• kernel: ionic: fix use after netif_napi_del() (CVE-2024-39502)
• 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)
• kernel: NFSv4: Fix memory leak in nfs4_set_security_label (CVE-2024-41076)

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 8.8 x86_64
• 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
• Red Hat Enterprise Linux for ARM 64 - Extended Life Cycle Long Life 8.8 aarch64
• Red Hat Enterprise Linux for Power, little endian - Extended Life Cycle Long Life 8.8 ppc64le
• Red Hat Enterprise Linux for IBM z Systems - Extended Life Cycle Long Life 8.8 s390x

Fixes

• BZ - 2258875 - CVE-2023-52881 kernel:TCP-spoofed ghost ACKs and leak leak initial sequence number
• BZ - 2267513 - CVE-2021-47069 kernel: ipc/mqueue, msg, sem: avoid relying on a stack reference past its expiry
• BZ - 2269070 - CVE-2023-52486 kernel: drm: Don't unref the same fb many times by mistake due to deadlock handling
• BZ - 2270084 - CVE-2023-52619 kernel: pstore/ram: Fix crash when setting number of cpus to an odd number
• BZ - 2273141 - CVE-2024-26720 kernel: mm/writeback: fix possible divide-by-zero in wb_dirty_limits(), again
• BZ - 2273654 - CVE-2024-26810 kernel: vfio/pci: Lock external INTx masking ops
• BZ - 2275748 - CVE-2024-26853 kernel: igc: avoid returning frame twice in XDP_REDIRECT
• BZ - 2275761 - CVE-2024-26852 kernel: net/ipv6: avoid possible UAF in ip6_route_mpath_notify()
• BZ - 2278314 - CVE-2024-26993 kernel: fs: sysfs: Fix reference leak in sysfs_break_active_protection()
• BZ - 2278354 - CVE-2024-26974 kernel: crypto: qat - resolve race condition during AER recovery
• BZ - 2278989 - CVE-2024-21823 kernel: dmaengine/idxd: hardware erratum allows potential security problem with direct access by untrusted application
• BZ - 2281057 - CVE-2024-35789 kernel: wifi: mac80211: check/clear fast rx for non-4addr sta VLAN changes
• BZ - 2281272 - CVE-2024-35845 kernel: wifi: iwlwifi: dbg-tlv: ensure NUL termination
• BZ - 2282355 - CVE-2021-47385 kernel: hwmon: (w83792d) Fix NULL pointer dereference by removing unnecessary structure field
• BZ - 2284271 - CVE-2024-36883 kernel: net: fix out-of-bounds access in ops_init
• BZ - 2284417 - CVE-2024-36017 kernel: rtnetlink: Correct nested IFLA_VF_VLAN_LIST attribute validation
• BZ - 2284474 - CVE-2024-36941 kernel: wifi: nl80211: don't free NULL coalescing rule
• BZ - 2284541 - CVE-2024-36904 kernel: tcp: Use refcount_inc_not_zero() in tcp_twsk_unique().
• BZ - 2293276 - CVE-2024-36979 kernel: net: bridge: mst: fix vlan use-after-free
• BZ - 2293300 - CVE-2023-52883 kernel: drm/amdgpu: Fix possible null pointer dereference
• BZ - 2293304 - CVE-2022-48754 kernel: phylib: fix potential use-after-free
• BZ - 2293316 - CVE-2022-48743 kernel: net: amd-xgbe: Fix skb data length underflow
• BZ - 2293371 - CVE-2024-38596 kernel: af_unix: Fix data races in unix_release_sock/unix_stream_sendmsg
• BZ - 2293383 - CVE-2022-48757 kernel: net: fix information leakage in /proc/net/ptype
• BZ - 2293402 - CVE-2024-38586 kernel: r8169: Fix possible ring buffer corruption on fragmented Tx packets.
• BZ - 2293423 - CVE-2024-38570 kernel: gfs2: Fix potential glock use-after-free on unmount
• BZ - 2293459 - CVE-2024-38540 kernel: bnxt_re: avoid shift undefined behavior in bnxt_qplib_alloc_init_hwq
• BZ - 2293657 - CVE-2024-33621 kernel: ipvlan: Dont Use skb->sk in ipvlan_process_v{4,6}_outbound
• BZ - 2293658 - CVE-2024-37356 kernel: tcp: Fix shift-out-of-bounds in dctcp_update_alpha().
• BZ - 2293687 - CVE-2024-36489 kernel: tls: fix missing memory barrier in tls_init
• BZ - 2297474 - CVE-2024-39502 kernel: ionic: fix use after netif_napi_del()
• 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
• BZ - 2300453 - CVE-2024-41076 kernel: NFSv4: Fix memory leak in nfs4_set_security_label

CVEs

• CVE-2021-47069
• CVE-2021-47385
• CVE-2022-48743
• CVE-2022-48754
• CVE-2022-48757
• CVE-2023-52486
• CVE-2023-52619
• CVE-2023-52881
• CVE-2023-52883
• CVE-2024-21823
• CVE-2024-26720
• CVE-2024-26810
• CVE-2024-26852
• CVE-2024-26853
• CVE-2024-26974
• CVE-2024-26993
• CVE-2024-33621
• CVE-2024-35789
• CVE-2024-35845
• CVE-2024-36017
• CVE-2024-36489
• CVE-2024-36883
• CVE-2024-36904
• CVE-2024-36941
• CVE-2024-36979
• CVE-2024-37356
• CVE-2024-38540
• CVE-2024-38570
• CVE-2024-38586
• CVE-2024-38596
• CVE-2024-39502
• CVE-2024-41076
• CVE-2024-41090
• CVE-2024-41091

References

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