RHSA-2022:5249 — Security Advisory

An update for kernel is now available for Red Hat Enterprise Linux 9.

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 packages contain the Linux kernel, the core of any Linux operating system.

Security Fix(es):

• kernel: Small table perturb size in the TCP source port generation algorithm can lead to information leak (CVE-2022-1012)

• kernel: race condition in perf_event_open leads to privilege escalation (CVE-2022-1729)

• kernel: a use-after-free write in the netfilter subsystem can lead to privilege escalation to root (CVE-2022-1966)

• kernel: buffer overflow in IPsec ESP transformation code (CVE-2022-27666)

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):

• make SHA512_arch algos and CRYPTO_USER built-ins (BZ#2072643)

• SR-IOV performance > 50% degradation (BZ#2074830)

• fix data corruption caused by dm-integrity (BZ#2082187)

• SCTP client-side peeloff issues [rhel-9] (BZ#2084044)

• TCP connection fails in a asymmetric routing situation (BZ#2085480)

• Fails to boot Multiple RT VMs each with multiple vCPUs (BZ#2086963)

• spec: Fix separate tools build (BZ#2090852)

• call traces related to eeh_pseries observed and vmcore is not captured, when kdump is triggered (BZ#2092255)

• Mark ThunderX NIC driver as unmaintained (BZ#2092638)