RHSA-2024:0134 — Security Advisory

An update for kernel-rt is now available for Red Hat Enterprise Linux 8.

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.

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: use after free in unix_stream_sendpage (CVE-2023-4622)

• kernel: vmwgfx: reference count issue leads to use-after-free in surface handling (CVE-2023-5633)

• kernel: netfilter: potential slab-out-of-bound access due to integer underflow (CVE-2023-42753)

• Kernel: UAF during login when accessing the shost ipaddress (CVE-2023-2162)

• hw amd: Return Address Predictor vulnerability leading to information disclosure (CVE-2023-20569)

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.

Bug Fix(es):

• kernel-rt: update RT source tree to the latest RHEL-8.9.z1 Batch (JIRA:RHEL-17347)