SUSE-SU-2026:3587-1: moderate: Security update for libarchive

[SLE-SECURITY-UPDATES]

# Security update for libarchive

Announcement ID: SUSE-SU-2026:3587-1  
Release Date: 2026-08-11T14:51:55Z  
Rating: moderate  
References:

  * bsc#1254340
  * bsc#1254341
  * bsc#1260998
  * bsc#1261003

  
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 has four security fixes can now be installed.

## Description:

This update for libarchive fixes the following issues:

  * creating temporary files in the current working directory instead of the
    target directory can lead to file creation failures when the working
    directory is not writable (bsc#1254340).
  * file descriptor leak in the mtree parser cleanup path could lead to file
    descriptor exhaustion and denial of service (bsc#1261003).
  * NULL pointer dereference in archive_acl_from_text_w() could lead to a
    segmentation fault (bsc#1260998).
  * reading from an invalid index when buffer size is smaller than
    H_LEVEL_OFFSET can lead to an out-of-bounds buffer overrun (bsc#1254341).

## 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-2026-3587=1

## Package List:

  * SUSE Linux Enterprise Server 12 SP5 LTSS Extended Security (x86_64)
    * libarchive-devel-3.3.3-32.20.1
    * libarchive13-debuginfo-3.3.3-32.20.1
    * libarchive13-3.3.3-32.20.1
    * libarchive-debugsource-3.3.3-32.20.1

## References:

  * https://bugzilla.suse.com/show_bug.cgi?id=1254340
  * https://bugzilla.suse.com/show_bug.cgi?id=1254341
  * https://bugzilla.suse.com/show_bug.cgi?id=1260998
  * https://bugzilla.suse.com/show_bug.cgi?id=1261003

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