SUSE-SU-2026:22767-1: moderate: Security update for gawk

[SLE-SECURITY-UPDATES]

# Security update for gawk

Announcement ID: SUSE-SU-2026:22767-1  
Release Date: 2026-07-20T13:43:46Z  
Rating: moderate  
References:

  * bsc#1271351
  * bsc#1271352
  * bsc#1271354

  
Cross-References:

  * CVE-2026-40467
  * CVE-2026-40468
  * CVE-2026-40553

  
CVSS scores:

  * CVE-2026-40467 ( SUSE ):  5.1
    CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N
  * CVE-2026-40467 ( SUSE ):  4.0 CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
  * CVE-2026-40467 ( NVD ):  5.1
    CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/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:X/AU:X/R:X/V:X/RE:X/U:X
  * CVE-2026-40467 ( NVD ):  7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
  * CVE-2026-40468 ( SUSE ):  2.1
    CVSS:4.0/AV:L/AC:L/AT:P/PR:N/UI:N/VC:N/VI:L/VA:L/SC:N/SI:N/SA:L
  * CVE-2026-40468 ( SUSE ):  4.0 CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
  * CVE-2026-40468 ( NVD ):  2.1
    CVSS:4.0/AV:L/AC:L/AT:P/PR:N/UI:N/VC:N/VI:L/VA:L/SC:N/SI:N/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:X/AU:X/R:X/V:X/RE:X/U:X
  * CVE-2026-40468 ( NVD ):  9.1 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H
  * CVE-2026-40553 ( SUSE ):  5.1
    CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N
  * CVE-2026-40553 ( SUSE ):  5.1 CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
  * CVE-2026-40553 ( NVD ):  5.1
    CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:N/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:X/AU:X/R:X/V:X/RE:X/U:X
  * CVE-2026-40553 ( NVD ):  7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

  
Affected Products:

  * SUSE Linux Micro 6.2

  
  
An update that solves three vulnerabilities can now be installed.

## Description:

This update for gawk fixes the following issues:

  * CVE-2026-40467: use-after-free vulnerability within the do_getline_redir()
    routine could lead to a program crash (bsc#1271351).
  * CVE-2026-40468: use-after-free vulnerability in gawk's "io.c" file could
    permit heap metadata manipulation and host memory exhaustion (bsc#1271352).
  * CVE-2026-40553: buffer overflow in the ftype() routine of the readdir
    extension could trigger a program crash (bsc#1271354).

## 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 6.2  
    zypper in -t patch SUSE-SL-Micro-6.2-1303=1

## Package List:

  * SUSE Linux Micro 6.2 (aarch64 ppc64le s390x x86_64)
    * gawk-5.3.2-160000.3.1
    * gawk-debuginfo-5.3.2-160000.3.1
    * gawk-debugsource-5.3.2-160000.3.1

## References:

  * https://www.suse.com/security/cve/CVE-2026-40467.html
  * https://www.suse.com/security/cve/CVE-2026-40468.html
  * https://www.suse.com/security/cve/CVE-2026-40553.html
  * https://bugzilla.suse.com/show_bug.cgi?id=1271351
  * https://bugzilla.suse.com/show_bug.cgi?id=1271352
  * https://bugzilla.suse.com/show_bug.cgi?id=1271354

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