RHSA-2022:7318HighCVSS 7.8

Red Hat Security Advisory: kernel security, bug fix, and enhancement update

Published
November 2, 2022
Last Modified
November 9, 2026

🔗 CVE IDs covered (4)

CVE-2022-2585 →CVE-2022-30594 →CVE-2022-49281 →CVE-2022-50095 →

📋 Description

CVE-2022-2585 — kernel: posix cpu timer use-after-free may lead to local privilege escalation CVE-2022-30594 — kernel: Unprivileged users may use PTRACE_SEIZE to set PTRACE_O_SUSPEND_SECCOMP option CVE-2022-49281 — kernel: cifs: fix handlecache and multiuser CVE-2022-50095 — kernel: posix-cpu-timers: Cleanup CPU timers before freeing them during exec

🎯 Affected products169

  • Red Hat CodeReady Linux Builder (v. 9)
  • Red Hat Enterprise Linux AppStream (v. 9)
  • Red Hat Enterprise Linux BaseOS (v. 9)
  • bpftool-0:5.14.0-70.30.1.el9_0.aarch64 as a component of Red Hat Enterprise Linux BaseOS (v. 9)
  • bpftool-0:5.14.0-70.30.1.el9_0.ppc64le as a component of Red Hat Enterprise Linux BaseOS (v. 9)
  • bpftool-0:5.14.0-70.30.1.el9_0.s390x as a component of Red Hat Enterprise Linux BaseOS (v. 9)
  • bpftool-0:5.14.0-70.30.1.el9_0.x86_64 as a component of Red Hat Enterprise Linux BaseOS (v. 9)
  • bpftool-debuginfo-0:5.14.0-70.30.1.el9_0.aarch64 as a component of Red Hat CodeReady Linux Builder (v. 9)
  • bpftool-debuginfo-0:5.14.0-70.30.1.el9_0.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 9)
  • bpftool-debuginfo-0:5.14.0-70.30.1.el9_0.aarch64 as a component of Red Hat Enterprise Linux BaseOS (v. 9)
  • bpftool-debuginfo-0:5.14.0-70.30.1.el9_0.ppc64le as a component of Red Hat CodeReady Linux Builder (v. 9)
  • bpftool-debuginfo-0:5.14.0-70.30.1.el9_0.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 9)
  • bpftool-debuginfo-0:5.14.0-70.30.1.el9_0.ppc64le as a component of Red Hat Enterprise Linux BaseOS (v. 9)
  • bpftool-debuginfo-0:5.14.0-70.30.1.el9_0.s390x as a component of Red Hat CodeReady Linux Builder (v. 9)
  • bpftool-debuginfo-0:5.14.0-70.30.1.el9_0.s390x as a component of Red Hat Enterprise Linux AppStream (v. 9)
  • bpftool-debuginfo-0:5.14.0-70.30.1.el9_0.s390x as a component of Red Hat Enterprise Linux BaseOS (v. 9)
  • bpftool-debuginfo-0:5.14.0-70.30.1.el9_0.x86_64 as a component of Red Hat CodeReady Linux Builder (v. 9)
  • bpftool-debuginfo-0:5.14.0-70.30.1.el9_0.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 9)
  • bpftool-debuginfo-0:5.14.0-70.30.1.el9_0.x86_64 as a component of Red Hat Enterprise Linux BaseOS (v. 9)
  • kernel-0:5.14.0-70.30.1.el9_0.aarch64 as a component of Red Hat Enterprise Linux BaseOS (v. 9)
  • kernel-0:5.14.0-70.30.1.el9_0.ppc64le as a component of Red Hat Enterprise Linux BaseOS (v. 9)
  • kernel-0:5.14.0-70.30.1.el9_0.s390x as a component of Red Hat Enterprise Linux BaseOS (v. 9)
  • kernel-0:5.14.0-70.30.1.el9_0.src as a component of Red Hat Enterprise Linux BaseOS (v. 9)
  • kernel-0:5.14.0-70.30.1.el9_0.x86_64 as a component of Red Hat Enterprise Linux BaseOS (v. 9)
  • kernel-abi-stablelists-0:5.14.0-70.30.1.el9_0.noarch as a component of Red Hat Enterprise Linux BaseOS (v. 9)
  • kernel-core-0:5.14.0-70.30.1.el9_0.aarch64 as a component of Red Hat Enterprise Linux BaseOS (v. 9)
  • kernel-core-0:5.14.0-70.30.1.el9_0.ppc64le as a component of Red Hat Enterprise Linux BaseOS (v. 9)
  • kernel-core-0:5.14.0-70.30.1.el9_0.s390x as a component of Red Hat Enterprise Linux BaseOS (v. 9)
  • kernel-core-0:5.14.0-70.30.1.el9_0.x86_64 as a component of Red Hat Enterprise Linux BaseOS (v. 9)
  • kernel-debug-0:5.14.0-70.30.1.el9_0.aarch64 as a component of Red Hat Enterprise Linux BaseOS (v. 9)
  • +139 more not shown

✅ Remediation

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. Workaround: Mitigation for this issue is either not available or the currently available options don't meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base, or stability. Workaround: If ptrace is not required, ptrace can be disabled in multiple ways. 1. SELinux policy. # setsebool -P deny_ptrace on 2. Kernel sysctl. # sysctl -w kernel.yama.ptrace_scope=3 Or to make persistent , create /etc/sysctl.d/99-yama-ptrace_scope.conf kernel.yama.ptrace_scope=3 If you need further assistance, see the KCS article https://access.redhat.com/solutions/41278 or contact Red Hat Global Support Services.

🔗 References (5)