SUSE-SU-2026:3590-1: moderate: Security update for gzip

[SLE-SECURITY-UPDATES]

# Security update for gzip

Announcement ID: SUSE-SU-2026:3590-1  
Release Date: 2026-08-12T09:14:08Z  
Rating: moderate  
References:

  * bsc#1269623
  * bsc#1272554

  
Cross-References:

  * CVE-2026-41992

  
CVSS scores:

  * CVE-2026-41992 ( SUSE ):  6.9
    CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:L/VI:N/VA:H/SC:N/SI:N/SA:N
  * CVE-2026-41992 ( SUSE ):  6.1 CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:H
  * CVE-2026-41992 ( NVD ):  6.9
    CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/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-2026-41992 ( NVD ):  7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

  
Affected Products:

  * SUSE Linux Enterprise Server 12 SP5
  * SUSE Linux Enterprise Server 12 SP5 LTSS Extended Security
  * SUSE Linux Enterprise Server for SAP Applications 12 SP5

  
  
An update that solves one vulnerability and has one security fix can now be
installed.

## Description:

This update for gzip fixes the following issues:

  * CVE-2026-41992: global buffer overflow in the LZH decompression logic due to
    improper reuse of shared global state between different decompression
    formats within a single execution (bsc#1269623).
  * crafted LZW file followed by a crafted LZH file can cause an out-of-bounds
    memory buffer access (bsc#1272554).

## 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 Enterprise Server 12 SP5 LTSS Extended Security  
    zypper in -t patch SUSE-SLE-SERVER-12-SP5-LTSS-EXTENDED-SECURITY-2026-3590=1

## Package List:

  * SUSE Linux Enterprise Server 12 SP5 LTSS Extended Security (x86_64)
    * gzip-debuginfo-1.10-4.20.1
    * gzip-1.10-4.20.1
    * gzip-debugsource-1.10-4.20.1

## References:

  * https://www.suse.com/security/cve/CVE-2026-41992.html
  * https://bugzilla.suse.com/show_bug.cgi?id=1269623
  * https://bugzilla.suse.com/show_bug.cgi?id=1272554

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