openSUSE-SU-2026:21393-1: moderate: Security update for gawk

openSUSE security update: security update for gawk
-------------------------------------------------------------

Announcement ID: openSUSE-SU-2026:21393-1
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 ): 4 CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
  * 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-2026-40468 ( SUSE ): 4 CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
  * 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-2026-40553 ( 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 ( 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

Affected Products:

         openSUSE Leap 16.0

-------------------------------------------------------------

An update that solves 3 vulnerabilities and has 3 bug fixes 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 openSUSE security 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 16.0

   zypper in -t patch openSUSE-Leap-16.0-1303=1

Package List:

- openSUSE Leap 16.0:

  gawk-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