# Security update for libX11

Announcement ID: SUSE-SU-2024:2453-1  
Rating: moderate  
References:

  * bsc#1215683
  * bsc#1215684
  * bsc#1215685

  
Cross-References:

  * CVE-2023-43785
  * CVE-2023-43786
  * CVE-2023-43787

  
CVSS scores:

  * CVE-2023-43785 ( SUSE ):  4.4 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:L
  * CVE-2023-43785 ( NVD ):  5.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
  * CVE-2023-43786 ( SUSE ):  5.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
  * CVE-2023-43786 ( NVD ):  5.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
  * CVE-2023-43787 ( SUSE ):  5.3 CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L
  * CVE-2023-43787 ( NVD ):  7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

  
Affected Products:

  * SUSE Linux Enterprise Micro 5.5

  
  
An update that solves three vulnerabilities can now be installed.

## Description:

This update for libX11 fixes the following issues:

  * CVE-2023-43786: Fixed stack exhaustion from infinite recursion in
    PutSubImage() (bsc#1215684).
  * CVE-2023-43787: Fixed integer overflow in XCreateImage() leading to a heap
    overflow (bsc#1215685).
  * CVE-2023-43785: Fixed out-of-bounds memory access in _XkbReadKeySyms()
    (bsc#1215683).

## 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-5.5-2024-2453=1

## Package List:

  * SUSE Linux Enterprise Micro 5.5 (ppc64le)
    * libX11-6-1.6.5-150000.3.33.1
    * libX11-6-debuginfo-1.6.5-150000.3.33.1
    * libX11-xcb1-debuginfo-1.6.5-150000.3.33.1
    * libX11-debugsource-1.6.5-150000.3.33.1
    * libX11-xcb1-1.6.5-150000.3.33.1
  * SUSE Linux Enterprise Micro 5.5 (noarch)
    * libX11-data-1.6.5-150000.3.33.1

## References:

  * https://www.suse.com/security/cve/CVE-2023-43785.html
  * https://www.suse.com/security/cve/CVE-2023-43786.html
  * https://www.suse.com/security/cve/CVE-2023-43787.html
  * https://bugzilla.suse.com/show_bug.cgi?id=1215683
  * https://bugzilla.suse.com/show_bug.cgi?id=1215684
  * https://bugzilla.suse.com/show_bug.cgi?id=1215685