RHSA-2024:4447 - 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: TIPC message reassembly use-after-free remote code execution vulnerability (CVE-2024-36886)
• kernel: net/sched: act_skbmod: Skip non-Ethernet packets (CVE-2021-47293)
• kernel: net: ti: fix UAF in tlan_remove_one (CVE-2021-47310)
• kernel: KVM: NULL pointer dereference in kvm_mmu_invpcid_gva (CVE-2022-1789)
• kernel: tls: race between async notify and socket close (CVE-2024-26583)
• kernel: tls: race between tx work scheduling and socket close (CVE-2024-26585)
• kernel: ipv6: sr: fix possible use-after-free and null-ptr-deref (CVE-2024-26735)
• kernel: Bluetooth: Avoid potential use-after-free in hci_error_reset (CVE-2024-26801)
• kernel: net: ip_tunnel: prevent perpetual headroom growth (CVE-2024-26804)
• kernel: netfilter: nf_tables: use timestamp to check for set element timeout (CVE-2024-27397)
• kernel: net: ena: Fix incorrect descriptor free behavior (CVE-2024-35958)
• kernel: ipv6: fix race condition between ipv6_get_ifaddr and ipv6_del_addr (CVE-2024-35969)
• kernel: scsi: lpfc: Move NPIV's transport unregistration to after resource clean up (CVE-2024-36952)
• kernel: tls: handle backlogging of crypto requests (CVE-2024-26584)
• kernel: netfilter: nf_tables: honor table dormant flag from netdev release event path (CVE-2024-36005)

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 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

Fixes

• BZ - 2090723 - CVE-2022-1789 kernel: KVM: NULL pointer dereference in kvm_mmu_invpcid_gva
• 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 - 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 - 2277238 - CVE-2024-36886 kernel: TIPC message reassembly use-after-free remote code execution vulnerability
• BZ - 2280434 - CVE-2024-27397 kernel: netfilter: nf_tables: use timestamp to check for set element timeout
• BZ - 2281900 - CVE-2024-35969 kernel: ipv6: fix race condition between ipv6_get_ifaddr and ipv6_del_addr
• BZ - 2281925 - CVE-2024-35958 kernel: net: ena: Fix incorrect descriptor free behavior
• BZ - 2281949 - CVE-2024-36005 kernel: netfilter: nf_tables: honor table dormant flag from netdev release event path
• BZ - 2282472 - CVE-2021-47310 kernel: net: ti: fix UAF in tlan_remove_one
• BZ - 2282504 - CVE-2021-47293 kernel: net/sched: act_skbmod: Skip non-Ethernet packets
• BZ - 2284598 - CVE-2024-36952 kernel: scsi: lpfc: Move NPIV's transport unregistration to after resource clean up

CVEs

• CVE-2021-47293
• CVE-2021-47310
• CVE-2022-1789
• CVE-2024-26583
• CVE-2024-26584
• CVE-2024-26585
• CVE-2024-26735
• CVE-2024-26801
• CVE-2024-26804
• CVE-2024-27397
• CVE-2024-35958
• CVE-2024-35969
• CVE-2024-36005
• CVE-2024-36886
• CVE-2024-36952

References

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