RHSA-2026:96099HighCVSS 7.5

Red Hat Security Advisory: ruby security update

Published
November 9, 2026
Last Modified
November 9, 2026

🔗 CVE IDs covered (1)

CVE-2026-80212 →

📋 Description

CVE-2026-80212 — resolv: resolv gem: Denial of Service via uncontrolled memory growth from crafted DNS responses

🎯 Affected products56

  • Red Hat Enterprise Linux Server (v. 7 ELS)
  • Red Hat Enterprise Linux Server Optional (v. 7 ELS)
  • ruby-0:2.0.0.648-40.el7_9.ppc64 as a component of Red Hat Enterprise Linux Server (v. 7 ELS)
  • ruby-0:2.0.0.648-40.el7_9.ppc64le as a component of Red Hat Enterprise Linux Server (v. 7 ELS)
  • ruby-0:2.0.0.648-40.el7_9.s390x as a component of Red Hat Enterprise Linux Server (v. 7 ELS)
  • ruby-0:2.0.0.648-40.el7_9.src as a component of Red Hat Enterprise Linux Server (v. 7 ELS)
  • ruby-0:2.0.0.648-40.el7_9.x86_64 as a component of Red Hat Enterprise Linux Server (v. 7 ELS)
  • ruby-debuginfo-0:2.0.0.648-40.el7_9.i686 as a component of Red Hat Enterprise Linux Server (v. 7 ELS)
  • ruby-debuginfo-0:2.0.0.648-40.el7_9.ppc as a component of Red Hat Enterprise Linux Server (v. 7 ELS)
  • ruby-debuginfo-0:2.0.0.648-40.el7_9.ppc64 as a component of Red Hat Enterprise Linux Server (v. 7 ELS)
  • ruby-debuginfo-0:2.0.0.648-40.el7_9.ppc64 as a component of Red Hat Enterprise Linux Server Optional (v. 7 ELS)
  • ruby-debuginfo-0:2.0.0.648-40.el7_9.ppc64le as a component of Red Hat Enterprise Linux Server (v. 7 ELS)
  • ruby-debuginfo-0:2.0.0.648-40.el7_9.ppc64le as a component of Red Hat Enterprise Linux Server Optional (v. 7 ELS)
  • ruby-debuginfo-0:2.0.0.648-40.el7_9.s390 as a component of Red Hat Enterprise Linux Server (v. 7 ELS)
  • ruby-debuginfo-0:2.0.0.648-40.el7_9.s390x as a component of Red Hat Enterprise Linux Server (v. 7 ELS)
  • ruby-debuginfo-0:2.0.0.648-40.el7_9.s390x as a component of Red Hat Enterprise Linux Server Optional (v. 7 ELS)
  • ruby-debuginfo-0:2.0.0.648-40.el7_9.x86_64 as a component of Red Hat Enterprise Linux Server (v. 7 ELS)
  • ruby-debuginfo-0:2.0.0.648-40.el7_9.x86_64 as a component of Red Hat Enterprise Linux Server Optional (v. 7 ELS)
  • ruby-devel-0:2.0.0.648-40.el7_9.ppc64 as a component of Red Hat Enterprise Linux Server Optional (v. 7 ELS)
  • ruby-devel-0:2.0.0.648-40.el7_9.ppc64le as a component of Red Hat Enterprise Linux Server Optional (v. 7 ELS)
  • ruby-devel-0:2.0.0.648-40.el7_9.s390x as a component of Red Hat Enterprise Linux Server Optional (v. 7 ELS)
  • ruby-devel-0:2.0.0.648-40.el7_9.x86_64 as a component of Red Hat Enterprise Linux Server Optional (v. 7 ELS)
  • ruby-doc-0:2.0.0.648-40.el7_9.noarch as a component of Red Hat Enterprise Linux Server Optional (v. 7 ELS)
  • ruby-irb-0:2.0.0.648-40.el7_9.noarch as a component of Red Hat Enterprise Linux Server (v. 7 ELS)
  • ruby-libs-0:2.0.0.648-40.el7_9.i686 as a component of Red Hat Enterprise Linux Server (v. 7 ELS)
  • ruby-libs-0:2.0.0.648-40.el7_9.ppc as a component of Red Hat Enterprise Linux Server (v. 7 ELS)
  • ruby-libs-0:2.0.0.648-40.el7_9.ppc64 as a component of Red Hat Enterprise Linux Server (v. 7 ELS)
  • ruby-libs-0:2.0.0.648-40.el7_9.ppc64le as a component of Red Hat Enterprise Linux Server (v. 7 ELS)
  • ruby-libs-0:2.0.0.648-40.el7_9.s390 as a component of Red Hat Enterprise Linux Server (v. 7 ELS)
  • ruby-libs-0:2.0.0.648-40.el7_9.s390x as a component of Red Hat Enterprise Linux Server (v. 7 ELS)
  • +26 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 Workaround: Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base, or stability.

🔗 References (4)