openSUSE-SU-2026:21332-1: low: Security update for patch

openSUSE security update: security update for patch
-------------------------------------------------------------

Announcement ID: openSUSE-SU-2026:21332-1
Rating: low
References:

  * bsc#1271166
  * bsc#1271167



Cross-References:

  * CVE-2026-56288
  * CVE-2026-56289



CVSS scores:

  * CVE-2026-56288 ( SUSE ): 3.3 CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L
  * CVE-2026-56288 ( SUSE ): 4.6 CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N
  * CVE-2026-56289 ( SUSE ): 3.3 CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L
  * CVE-2026-56289 ( SUSE ): 4.6 CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:L/SC:N/SI:N/SA:L

Affected Products:

         openSUSE Leap 16.0

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

An update that solves 2 vulnerabilities and has 2 bug fixes can now be installed.

Description:

This update for patch fixes the following issues

- CVE-2026-56288: crafted unified-diff patch file can cause null pointer derefence (bsc#1271167).
- CVE-2026-56289: improper validation of hunk line offsets can lead to denial of service (bsc#1271166).


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-16.0-1236=1

Package List:

- openSUSE Leap 16.0:

  patch-2.7.6-160000.4.1

References:

  * https://www.suse.com/security/cve/CVE-2026-56288.html
  * https://www.suse.com/security/cve/CVE-2026-56289.html