# Security update for zlib

Announcement ID: SUSE-SU-2024:2431-1  
Rating: moderate  
References:

  * bsc#1216378

  
Cross-References:

  * CVE-2023-45853

  
CVSS scores:

  * CVE-2023-45853 ( SUSE ):  5.3 CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L
  * CVE-2023-45853 ( NVD ):  9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

  
Affected Products:

  * SUSE Linux Enterprise Micro 5.5

  
  
An update that solves one vulnerability can now be installed.

## Description:

This update for zlib fixes the following issues:

  * CVE-2023-45853: Fixed an integer overflow that would lead to a buffer
    overflow in the minizip subcomponent (bsc#1216378).

## 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 Micro 5.5  
    zypper in -t patch SUSE-SLE-Micro-5.5-2024-2431=1

## Package List:

  * SUSE Linux Enterprise Micro 5.5 (ppc64le)
    * zlib-devel-1.2.13-150500.4.3.1
    * libz1-debuginfo-1.2.13-150500.4.3.1
    * zlib-debugsource-1.2.13-150500.4.3.1
    * libz1-1.2.13-150500.4.3.1

## References:

  * https://www.suse.com/security/cve/CVE-2023-45853.html
  * https://bugzilla.suse.com/show_bug.cgi?id=1216378