RHSA-2026:33227: Moderate: glibc security update
Moderate: glibc security update
Other sources
The glibc packages provide the standard C libraries (libc), POSIX thread libraries (libpthread), standard math libraries (libm), and the name service cache daemon (nscd) used by multiple programs on the system. Without these libraries, the Linux system cannot function correctly.Security Fix(es): glibc: glibc: Heap Buffer Overflow in scanf with %mc format specifier and large width (CVE-2026-5450) For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.
— Red Hat
Affected Software
Remediation
Recommended actions to resolve this vulnerability, in priority order.
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redhat/glibcto a version that resolves this vulnerability.Fixed in 2.28-189.13.el8_6 - Upgrade
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redhat/compat-libpthread-nonsharedto a version that resolves this vulnerability.Fixed in 2.28-189.13.el8_6 - Upgrade
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redhat/glibc-all-langpacksto a version that resolves this vulnerability.Fixed in 2.28-189.13.el8_6 - Upgrade
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redhat/glibc-benchtests-debuginfoto a version that resolves this vulnerability.Fixed in 2.28-189.13.el8_6 - Upgrade
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redhat/glibc-langpack-tlto a version that resolves this vulnerability.Fixed in 2.28-189.13.el8_6 - Upgrade
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redhat/glibc-langpack-tnto a version that resolves this vulnerability.Fixed in 2.28-189.13.el8_6 - Upgrade
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redhat/glibc-langpack-toto a version that resolves this vulnerability.Fixed in 2.28-189.13.el8_6 - Upgrade
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redhat/glibc-langpack-tpito a version that resolves this vulnerability.Fixed in 2.28-189.13.el8_6 - Upgrade
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redhat/glibc-langpack-trto a version that resolves this vulnerability.Fixed in 2.28-189.13.el8_6 - Upgrade
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redhat/glibc-langpack-tsto a version that resolves this vulnerability.Fixed in 2.28-189.13.el8_6 - Upgrade
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redhat/glibc-langpack-ttto a version that resolves this vulnerability.Fixed in 2.28-189.13.el8_6 - Upgrade
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redhat/glibc-langpack-ugto a version that resolves this vulnerability.Fixed in 2.28-189.13.el8_6 - Upgrade
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redhat/glibc-langpack-ukto a version that resolves this vulnerability.Fixed in 2.28-189.13.el8_6 - Upgrade
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redhat/glibc-langpack-unmto a version that resolves this vulnerability.Fixed in 2.28-189.13.el8_6 - Upgrade
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redhat/glibc-langpack-urto a version that resolves this vulnerability.Fixed in 2.28-189.13.el8_6 - Upgrade
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redhat/glibc-langpack-uzto a version that resolves this vulnerability.Fixed in 2.28-189.13.el8_6 - Upgrade
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redhat/glibc-langpack-veto a version that resolves this vulnerability.Fixed in 2.28-189.13.el8_6 - Upgrade
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redhat/glibc-langpack-vito a version that resolves this vulnerability.Fixed in 2.28-189.13.el8_6 - Upgrade
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redhat/glibc-langpack-wato a version that resolves this vulnerability.Fixed in 2.28-189.13.el8_6 - Upgrade
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redhat/glibc-langpack-waeto a version that resolves this vulnerability.Fixed in 2.28-189.13.el8_6 - Upgrade
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redhat/glibc-langpack-walto a version that resolves this vulnerability.Fixed in 2.28-189.13.el8_6 - Upgrade
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redhat/glibc-langpack-woto a version that resolves this vulnerability.Fixed in 2.28-189.13.el8_6 - Upgrade
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redhat/glibc-langpack-xhto a version that resolves this vulnerability.Fixed in 2.28-189.13.el8_6 - Upgrade
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redhat/glibc-langpack-yito a version that resolves this vulnerability.Fixed in 2.28-189.13.el8_6 - Upgrade
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redhat/glibc-langpack-yoto a version that resolves this vulnerability.Fixed in 2.28-189.13.el8_6 - Upgrade
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redhat/glibc-langpack-yueto a version that resolves this vulnerability.Fixed in 2.28-189.13.el8_6 - Upgrade
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redhat/glibc-langpack-yuwto a version that resolves this vulnerability.Fixed in 2.28-189.13.el8_6 - Upgrade
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redhat/glibc-langpack-zhto a version that resolves this vulnerability.Fixed in 2.28-189.13.el8_6 - Upgrade
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redhat/glibc-langpack-zuto a version that resolves this vulnerability.Fixed in 2.28-189.13.el8_6 - Upgrade
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redhat/glibc-locale-sourceto a version that resolves this vulnerability.Fixed in 2.28-189.13.el8_6 - Upgrade
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redhat/glibc-minimal-langpackto a version that resolves this vulnerability.Fixed in 2.28-189.13.el8_6 - Upgrade
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redhat/glibc-utilsto a version that resolves this vulnerability.Fixed in 2.28-189.13.el8_6 - Upgrade
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redhat/glibc-utils-debuginfoto a version that resolves this vulnerability.Fixed in 2.28-189.13.el8_6 - Upgrade
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redhat/libnslto a version that resolves this vulnerability.Fixed in 2.28-189.13.el8_6 - Upgrade
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redhat/libnsl-debuginfoto a version that resolves this vulnerability.Fixed in 2.28-189.13.el8_6 - Upgrade
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redhat/nscdto a version that resolves this vulnerability.Fixed in 2.28-189.13.el8_6 - Upgrade
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redhat/nscd-debuginfoto a version that resolves this vulnerability.Fixed in 2.28-189.13.el8_6
Event History
Frequently Asked Questions
What is the severity of RHSA-2026:33227?
The severity of RHSA-2026:33227 is classified as medium with a score of 4.
How do I fix RHSA-2026:33227?
To fix RHSA-2026:33227, update the affected glibc packages to the latest version provided by Red Hat.
What is affected by RHSA-2026:33227?
RHSA-2026:33227 affects the glibc packages, which include standard C libraries, POSIX thread libraries, and related debuginfo packages.
What type of vulnerability is associated with RHSA-2026:33227?
RHSA-2026:33227 is associated with a buffer overflow vulnerability.
Is a restart required after applying the fix for RHSA-2026:33227?
Yes, a restart may be required to fully apply the security updates related to RHSA-2026:33227.