Loop with Unreachable Exit Condition ('Infinite Loop') Affecting libx11 package, versions <2:1.6.4-3ubuntu0.4+esm2


Severity

Recommended
0.0
medium
0
10

Based on Ubuntu security rating.

Threat Intelligence

EPSS
0.04% (6th percentile)

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  • Snyk IDSNYK-UBUNTU1804-LIBX11-5927430
  • published4 Oct 2023
  • disclosed10 Oct 2023

Introduced: 4 Oct 2023

CVE-2023-43786  (opens in a new tab)
CWE-835  (opens in a new tab)

How to fix?

Upgrade Ubuntu:18.04 libx11 to version 2:1.6.4-3ubuntu0.4+esm2 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream libx11 package and not the libx11 package as distributed by Ubuntu. See How to fix? for Ubuntu:18.04 relevant fixed versions and status.

A vulnerability was found in libX11 due to an infinite loop within the PutSubImage() function. This flaw allows a local user to consume all available system resources and cause a denial of service condition.

CVSS Scores

version 3.1