RHSA-2021:1585MediumCVSS 7.5

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

Published
May 18, 2021
Last Modified
October 14, 2026

🔗 CVE IDs covered (5)

CVE-2016-10228 →CVE-2019-9169 →CVE-2019-25013 →CVE-2020-27618 →CVE-2021-3326 →

📋 Description

CVE-2016-10228 — glibc: iconv program can hang when invoked with the -c option CVE-2019-9169 — glibc: regular-expression match via proceed_next_node in posix/regexec.c leads to heap-based buffer over-read CVE-2019-25013 — glibc: buffer over-read in iconv when processing invalid multi-byte input sequences in the EUC-KR encoding CVE-2020-27618 — glibc: iconv when processing invalid multi-byte input sequences fails to advance the input state, which could result in an infinite loop CVE-2021-3326 — glibc: Assertion failure in ISO-2022-JP-3 gconv module related to combining characters

🎯 Affected products200

  • Red Hat CodeReady Linux Builder (v. 8)
  • Red Hat Enterprise Linux AppStream (v. 8)
  • Red Hat Enterprise Linux BaseOS (v. 8)
  • compat-libpthread-nonshared-0:2.28-151.el8.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 8)
  • compat-libpthread-nonshared-0:2.28-151.el8.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 8)
  • compat-libpthread-nonshared-0:2.28-151.el8.s390x as a component of Red Hat Enterprise Linux AppStream (v. 8)
  • compat-libpthread-nonshared-0:2.28-151.el8.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 8)
  • glibc-0:2.28-151.el8.aarch64 as a component of Red Hat Enterprise Linux BaseOS (v. 8)
  • glibc-0:2.28-151.el8.i686 as a component of Red Hat Enterprise Linux BaseOS (v. 8)
  • glibc-0:2.28-151.el8.ppc64le as a component of Red Hat Enterprise Linux BaseOS (v. 8)
  • glibc-0:2.28-151.el8.s390x as a component of Red Hat Enterprise Linux BaseOS (v. 8)
  • glibc-0:2.28-151.el8.src as a component of Red Hat Enterprise Linux BaseOS (v. 8)
  • glibc-0:2.28-151.el8.x86_64 as a component of Red Hat Enterprise Linux BaseOS (v. 8)
  • glibc-all-langpacks-0:2.28-151.el8.aarch64 as a component of Red Hat Enterprise Linux BaseOS (v. 8)
  • glibc-all-langpacks-0:2.28-151.el8.ppc64le as a component of Red Hat Enterprise Linux BaseOS (v. 8)
  • glibc-all-langpacks-0:2.28-151.el8.s390x as a component of Red Hat Enterprise Linux BaseOS (v. 8)
  • glibc-all-langpacks-0:2.28-151.el8.x86_64 as a component of Red Hat Enterprise Linux BaseOS (v. 8)
  • glibc-benchtests-0:2.28-151.el8.aarch64 as a component of Red Hat CodeReady Linux Builder (v. 8)
  • glibc-benchtests-0:2.28-151.el8.ppc64le as a component of Red Hat CodeReady Linux Builder (v. 8)
  • glibc-benchtests-0:2.28-151.el8.s390x as a component of Red Hat CodeReady Linux Builder (v. 8)
  • glibc-benchtests-0:2.28-151.el8.x86_64 as a component of Red Hat CodeReady Linux Builder (v. 8)
  • glibc-common-0:2.28-151.el8.aarch64 as a component of Red Hat Enterprise Linux BaseOS (v. 8)
  • glibc-common-0:2.28-151.el8.ppc64le as a component of Red Hat Enterprise Linux BaseOS (v. 8)
  • glibc-common-0:2.28-151.el8.s390x as a component of Red Hat Enterprise Linux BaseOS (v. 8)
  • glibc-common-0:2.28-151.el8.x86_64 as a component of Red Hat Enterprise Linux BaseOS (v. 8)
  • glibc-debuginfo-0:2.28-151.el8.aarch64 as a component of Red Hat CodeReady Linux Builder (v. 8)
  • glibc-debuginfo-0:2.28-151.el8.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 8)
  • glibc-debuginfo-0:2.28-151.el8.aarch64 as a component of Red Hat Enterprise Linux BaseOS (v. 8)
  • glibc-debuginfo-0:2.28-151.el8.i686 as a component of Red Hat CodeReady Linux Builder (v. 8)
  • glibc-debuginfo-0:2.28-151.el8.i686 as a component of Red Hat Enterprise Linux BaseOS (v. 8)
  • +170 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. 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 (24)