RHSA-2024:7490 - Security Advisory

Topic

An update for kernel-rt is now available for Red Hat Enterprise Linux 9.2 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-rt packages provide the Real Time Linux Kernel, which enables fine-tuning for systems with extremely high determinism requirements.

Security Fix(es):

• kernel: netfilter: bridge: confirm multicast packets before passing them up the stack (CVE-2024-27415)
• kernel: net: bridge: mst: fix vlan use-after-free (CVE-2024-36979)
• kernel: net: openvswitch: fix overwriting ct original tuple for ICMPv6 (CVE-2024-38558)
• kernel: netfilter: tproxy: bail out if IP has been disabled on the device (CVE-2024-36270)

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 - Update Services for SAP Solutions 9.2 x86_64

Fixes

• BZ - 2281101 - CVE-2024-27415 kernel: netfilter: bridge: confirm multicast packets before passing them up the stack
• BZ - 2293276 - CVE-2024-36979 kernel: net: bridge: mst: fix vlan use-after-free
• BZ - 2293441 - CVE-2024-38558 kernel: net: openvswitch: fix overwriting ct original tuple for ICMPv6
• BZ - 2293653 - CVE-2024-36270 kernel: netfilter: tproxy: bail out if IP has been disabled on the device

CVEs

• CVE-2024-27415
• CVE-2024-36270
• CVE-2024-36979
• CVE-2024-38558

References

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