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openSUSE glibc Important Remote Crash Heap Overflow Vuln 2026-2231-1

opensuse
Calendar Grey June 4, 2026
Dist Opensuse Esm H88
# Security update for glibc Announcement ID: SUSE-SU-2026:2231-1 Release Date: 2026-06-03T10:57:32Z
An update that solves three vulnerabilities can now be installed.

Description

This update for glibc fixes the following issues

* CVE-2026-4046: assertion failure when converting inputs may be used to

remotely crash an application (bsc#1261206).

* CVE-2026-5450: stdio-common: scanf %mc pattern will cause heap overflow when

width > 1024 (bsc#1262465).

* CVE-2026-5928: libio: ungetwc could be used to leak data on special

conditions (bsc#1262464).

Topics%20covered

Topics Covered

security advisory important heap overflow glibc remote crash OpenSUSE

Patch

## Patch Instructions:

To install this SUSE update use the SUSE recommended installation methods like

YaST online_update or "zypper patch".

Alternatively you can run the command listed for your product:

* openSUSE Leap 15.6

zypper in -t patch SUSE-2026-2231=1

* SUSE Linux Enterprise Server for SAP Applications 15 SP6

zypper in -t patch SUSE-SLE-Product-SLES_SAP-15-SP6-2026-2231=1

* Basesystem Module 15-SP7

zypper in -t patch SUSE-SLE-Module-Basesystem-15-SP7-2026-2231=1

* Development Tools Module 15-SP7

zypper in -t patch SUSE-SLE-Module-Development-Tools-15-SP7-2026-2231=1

* SUSE Linux Enterprise Server 15 SP6 LTSS

zypper in -t patch SUSE-SLE-Product-SLES-15-SP6-LTSS-2026-2231=1

Package List

* openSUSE Leap 15.6 (aarch64 ppc64le s390x x86_64 i586 i686)

* glibc-debuginfo-2.38-150600.14.49.1

* glibc-profile-2.38-150600.14.49.1

* glibc-2.38-150600.14.49.1

* glibc-locale-base-debuginfo-2.38-150600.14.49.1

* glibc-debugsource-2.38-150600.14.49.1

* glibc-devel-2.38-150600.14.49.1

* glibc-locale-base-2.38-150600.14.49.1

* libnsl1-2.38-150600.14.49.1

* glibc-devel-static-2.38-150600.14.49.1

* glibc-locale-2.38-150600.14.49.1

* libnsl1-debuginfo-2.38-150600.14.49.1

* glibc-devel-debuginfo-2.38-150600.14.49.1

* openSUSE Leap 15.6 (aarch64 ppc64le s390x x86_64 i586)

* glibc-extra-debuginfo-2.38-150600.14.49.1

* glibc-utils-src-debugsource-2.38-150600.14.49.1

* glibc-utils-debuginfo-2.38-150600.14.49.1

* glibc-utils-2.38-150600.14.49.1

* glibc-extra-2.38-150600.14.49.1

* nscd-debuginfo-2.38-150600.14.49.1

* nscd-2.38-150600.14.49.1

* openSUSE Leap 15.6 (noarch)

* glibc-lang-2.38-150600.14.49.1

* glibc-html-2.38-150600.14.49.1

* glibc-i18ndata-2.38-150600.14.49.1

* glibc-info-2.38-150600.14.49.1

* openSUSE...

Read the Full Advisory

References

* bsc#1261206

* bsc#1262464

* bsc#1262465

## References:

* https://www.suse.com/security/cve/CVE-2026-4046.html

* https://www.suse.com/security/cve/CVE-2026-5450.html

* https://www.suse.com/security/cve/CVE-2026-5928.html

* https://bugzilla.suse.com/show_bug.cgi?id=1261206

* https://bugzilla.suse.com/show_bug.cgi?id=1262464

* https://bugzilla.suse.com/show_bug.cgi?id=1262465

Severity
important
Lowest
Low
Medium
High
Critical

Announcement ID: SUSE-SU-2026:2231-1
Release Date: 2026-06-03T10:57:32Z
Affected Products: * Basesystem Module 15-SP7 * Development Tools Module 15-SP7 * openSUSE Leap 15.6 * SUSE Linux Enterprise Desktop 15 SP7 * SUSE Linux Enterprise Real Time 15 SP7 * SUSE Linux Enterprise Server 15 SP6 * SUSE Linux Enterprise Server 15 SP6 LTSS * SUSE Linux Enterprise Server 15 SP7 * SUSE Linux Enterprise Server for SAP Applications 15 SP6 * SUSE Linux Enterprise Server for SAP Applications 15 SP7

Topics%20covered

Topics Covered

security advisory important heap overflow glibc remote crash OpenSUSE

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