RHSA-2026:36192HighCVSS 7.5

Red Hat Security Advisory: Red Hat Hardened Images RPMs bug fix and enhancement update

Published
July 7, 2026
Last Modified
August 2, 2026

🔗 CVE IDs covered (1)

CVE-2026-33630 →

📋 Description

CVE-2026-33630 — c-ares: c-ares: Use-after-free / double-free in query-completion handling

🎯 Affected products4

  • Red Hat Hardened Images
  • c-ares-main@aarch64 as a component of Red Hat Hardened Images
  • c-ares-main@src as a component of Red Hat Hardened Images
  • c-ares-main@x86_64 as a component of Red Hat Hardened Images

✅ Remediation

For details on how to apply this update, which includes the changes described in this advisory, refer to: https://images.redhat.com/ Workaround: There is no complete mitigation for the remotely-triggered path. As a partial mitigation, use trusted DNS resolvers reached over a trusted transport (e.g., DNS-over-TLS). Avoid calling ares_cancel() from within a query callback to prevent the application-triggered path. Upgrade to c-ares 1.34.7 or later.

🔗 References (5)