RHSA-2021:2813MediumCVSS 7.5

Red Hat Security Advisory: glibc security update

Published
July 20, 2021
Last Modified
October 14, 2026

🔗 CVE IDs covered (1)

CVE-2020-29573 →

📋 Description

CVE-2020-29573 — glibc: stack-based buffer overflow if the input to any of the printf family of functions is an 80-bit long double with a non-canonical bit pattern

🎯 Affected products74

  • Red Hat Enterprise Linux Server AUS (v. 7.4)
  • Red Hat Enterprise Linux Server E4S (v. 7.4)
  • Red Hat Enterprise Linux Server Optional AUS (v. 7.4)
  • Red Hat Enterprise Linux Server Optional E4S (v. 7.4)
  • Red Hat Enterprise Linux Server Optional TUS (v. 7.4)
  • Red Hat Enterprise Linux Server TUS (v. 7.4)
  • glibc-0:2.17-196.el7_4.4.i686 as a component of Red Hat Enterprise Linux Server AUS (v. 7.4)
  • glibc-0:2.17-196.el7_4.4.i686 as a component of Red Hat Enterprise Linux Server E4S (v. 7.4)
  • glibc-0:2.17-196.el7_4.4.i686 as a component of Red Hat Enterprise Linux Server TUS (v. 7.4)
  • glibc-0:2.17-196.el7_4.4.ppc64le as a component of Red Hat Enterprise Linux Server E4S (v. 7.4)
  • glibc-0:2.17-196.el7_4.4.src as a component of Red Hat Enterprise Linux Server AUS (v. 7.4)
  • glibc-0:2.17-196.el7_4.4.src as a component of Red Hat Enterprise Linux Server E4S (v. 7.4)
  • glibc-0:2.17-196.el7_4.4.src as a component of Red Hat Enterprise Linux Server TUS (v. 7.4)
  • glibc-0:2.17-196.el7_4.4.x86_64 as a component of Red Hat Enterprise Linux Server AUS (v. 7.4)
  • glibc-0:2.17-196.el7_4.4.x86_64 as a component of Red Hat Enterprise Linux Server E4S (v. 7.4)
  • glibc-0:2.17-196.el7_4.4.x86_64 as a component of Red Hat Enterprise Linux Server TUS (v. 7.4)
  • glibc-common-0:2.17-196.el7_4.4.ppc64le as a component of Red Hat Enterprise Linux Server E4S (v. 7.4)
  • glibc-common-0:2.17-196.el7_4.4.x86_64 as a component of Red Hat Enterprise Linux Server AUS (v. 7.4)
  • glibc-common-0:2.17-196.el7_4.4.x86_64 as a component of Red Hat Enterprise Linux Server E4S (v. 7.4)
  • glibc-common-0:2.17-196.el7_4.4.x86_64 as a component of Red Hat Enterprise Linux Server TUS (v. 7.4)
  • glibc-debuginfo-0:2.17-196.el7_4.4.i686 as a component of Red Hat Enterprise Linux Server AUS (v. 7.4)
  • glibc-debuginfo-0:2.17-196.el7_4.4.i686 as a component of Red Hat Enterprise Linux Server E4S (v. 7.4)
  • glibc-debuginfo-0:2.17-196.el7_4.4.i686 as a component of Red Hat Enterprise Linux Server Optional AUS (v. 7.4)
  • glibc-debuginfo-0:2.17-196.el7_4.4.i686 as a component of Red Hat Enterprise Linux Server Optional E4S (v. 7.4)
  • glibc-debuginfo-0:2.17-196.el7_4.4.i686 as a component of Red Hat Enterprise Linux Server Optional TUS (v. 7.4)
  • glibc-debuginfo-0:2.17-196.el7_4.4.i686 as a component of Red Hat Enterprise Linux Server TUS (v. 7.4)
  • glibc-debuginfo-0:2.17-196.el7_4.4.ppc64le as a component of Red Hat Enterprise Linux Server E4S (v. 7.4)
  • glibc-debuginfo-0:2.17-196.el7_4.4.ppc64le as a component of Red Hat Enterprise Linux Server Optional E4S (v. 7.4)
  • glibc-debuginfo-0:2.17-196.el7_4.4.x86_64 as a component of Red Hat Enterprise Linux Server AUS (v. 7.4)
  • glibc-debuginfo-0:2.17-196.el7_4.4.x86_64 as a component of Red Hat Enterprise Linux Server E4S (v. 7.4)
  • +44 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 For the update to take effect, all services linked to the glibc library must be restarted, or the system rebooted.

🔗 References (4)