SUSE-SU-2026:23830-1: moderate: Security update for glibc

Tue Sep 22 12:41:17 UTC 2026

# Security update for glibc

Announcement ID: SUSE-SU-2026:23830-1  
Release Date: 2026-09-14T11:13:58Z  
Rating: moderate  
References:

  * bsc#1274723
  * bsc#1274726
  * bsc#1276892
  * bsc#1276946
  * bsc#1277262
  * bsc#1277921
  * bsc#1277922

Cross-References:

  * CVE-2026-18374
  * CVE-2026-19499
  * CVE-2026-19542
  * CVE-2026-6368
  * CVE-2026-6791
  * CVE-2026-77117
  * CVE-2026-80489

CVSS scores:

  * CVE-2026-18374 ( SUSE ):  2.1
    CVSS:4.0/AV:L/AC:H/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N
  * CVE-2026-18374 ( SUSE ):  4.9 CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L
  * CVE-2026-18374 ( NVD ):  4.9 CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L
  * CVE-2026-19499 ( SUSE ):  4.4
    CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:P/VC:L/VI:L/VA:H/SC:N/SI:N/SA:N
  * CVE-2026-19499 ( SUSE ):  6.1 CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:H
  * CVE-2026-19499 ( NVD ):  7.7 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:L/A:H
  * CVE-2026-19542 ( SUSE ):  1.0
    CVSS:4.0/AV:L/AC:H/AT:N/PR:L/UI:A/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N
  * CVE-2026-19542 ( SUSE ):  4.2 CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:U/C:L/I:L/A:L
  * CVE-2026-19542 ( NVD ):  5.6 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L
  * CVE-2026-6368 ( SUSE ):  6.6 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:H
  * CVE-2026-6368 ( NVD ):  2.1
    CVSS:4.0/AV:L/AC:H/AT:P/PR:N/UI:N/VC:L/VI:L/VA:L/SC:L/SI:L/SA:L/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:P/AU:Y/R:X/V:X/RE:X/U:Green
  * CVE-2026-6791 ( SUSE ):  6.6 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:H
  * CVE-2026-6791 ( NVD ):  6.6
    CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:L/VI:L/VA:H/SC:N/SI:L/SA:H/E:U/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
  * CVE-2026-77117 ( SUSE ):  8.2
    CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
  * CVE-2026-77117 ( SUSE ):  5.9 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
  * CVE-2026-77117 ( NVD ):  5.9 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
  * CVE-2026-80489 ( SUSE ):  8.2
    CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
  * CVE-2026-80489 ( SUSE ):  5.9 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
  * CVE-2026-80489 ( NVD ):  5.9 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H

Affected Products:

  * SUSE Linux Micro 6.0

An update that solves seven vulnerabilities can now be installed.

## Description:

This update for glibc fixes the following issues:

  * CVE-2026-6368: invalid free via wordexp WRDE_APPEND rollback (bsc#1274726).
  * CVE-2026-6791: stack overflow in wordexp tilde expansion (bsc#1274723).
  * CVE-2026-18374: heap buffer overflow in the fopen ccs extension
    (bsc#1277262).
  * CVE-2026-19499: buffer overflow in strfmon right-justification padding
    (bsc#1276892).
  * CVE-2026-19542: out-of-bounds array write in tdelete (bsc#1276946).
  * CVE-2026-77117: SHIFT_JISX0213 decoding lacks pending character reset
    (bsc#1277921).
  * CVE-2026-80489: EUC_JISX0213 decoding lacks pending character reset
    (bsc#1277922).

## 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:

  * SUSE Linux Micro 6.0  
    zypper in -t patch SUSE-SLE-Micro-6.0-897

## Package List:

  * SUSE Linux Micro 6.0 (aarch64 s390x x86_64)
    * glibc-devel-2.38-15.1
    * glibc-debuginfo-2.38-15.1
    * glibc-locale-base-2.38-15.1
    * glibc-2.38-15.1
    * glibc-locale-base-debuginfo-2.38-15.1
    * glibc-locale-2.38-15.1
    * glibc-devel-debuginfo-2.38-15.1
    * glibc-debugsource-2.38-15.1

## References:

  * https://www.suse.com/security/cve/CVE-2026-18374.html
  * https://www.suse.com/security/cve/CVE-2026-19499.html
  * https://www.suse.com/security/cve/CVE-2026-19542.html
  * https://www.suse.com/security/cve/CVE-2026-6368.html
  * https://www.suse.com/security/cve/CVE-2026-6791.html
  * https://www.suse.com/security/cve/CVE-2026-77117.html
  * https://www.suse.com/security/cve/CVE-2026-80489.html
  * https://bugzilla.suse.com/show_bug.cgi?id=1274723
  * https://bugzilla.suse.com/show_bug.cgi?id=1274726
  * https://bugzilla.suse.com/show_bug.cgi?id=1276892
  * https://bugzilla.suse.com/show_bug.cgi?id=1276946
  * https://bugzilla.suse.com/show_bug.cgi?id=1277262
  * https://bugzilla.suse.com/show_bug.cgi?id=1277921
  * https://bugzilla.suse.com/show_bug.cgi?id=1277922

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