RHSA-2021:2165HighCVSS 7.8

Red Hat Security Advisory: kpatch-patch security update

Published
June 1, 2021
Last Modified
August 5, 2026

🔗 CVE IDs covered (1)

CVE-2021-3501 →

📋 Description

CVE-2021-3501 — kernel: userspace applications can misuse the KVM API to cause a write of 16 bytes at an offset up to 32 GB from vcpu->run

🎯 Affected products5

  • Red Hat Enterprise Linux BaseOS (v. 8)
  • kpatch-patch-4_18_0-305-0:1-1.el8.src as a component of Red Hat Enterprise Linux BaseOS (v. 8)
  • kpatch-patch-4_18_0-305-0:1-1.el8.x86_64 as a component of Red Hat Enterprise Linux BaseOS (v. 8)
  • kpatch-patch-4_18_0-305-debuginfo-0:1-1.el8.x86_64 as a component of Red Hat Enterprise Linux BaseOS (v. 8)
  • kpatch-patch-4_18_0-305-debugsource-0:1-1.el8.x86_64 as a component of Red Hat Enterprise Linux BaseOS (v. 8)

✅ 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 Workaround: Red Hat has investigated whether a possible mitigation exists for this issue, and has not been able to identify a practical example. Please update as soon as possible.

🔗 References (4)