Integer Underflow Affecting xorg-server package, versions <2:1.18.4-0ubuntu0.12


Severity

Recommended
medium

Based on Ubuntu security rating.

Threat Intelligence

EPSS
0.04% (12th percentile)

Do your applications use this vulnerable package?

In a few clicks we can analyze your entire application and see what components are vulnerable in your application, and suggest you quick fixes.

Test your applications
  • Snyk IDSNYK-UBUNTU1604-XORGSERVER-1245451
  • published14 Apr 2021
  • disclosed26 Apr 2021

Introduced: 14 Apr 2021

CVE-2021-3472  (opens in a new tab)
CWE-191  (opens in a new tab)

How to fix?

Upgrade Ubuntu:16.04 xorg-server to version 2:1.18.4-0ubuntu0.12 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream xorg-server package and not the xorg-server package as distributed by Ubuntu. See How to fix? for Ubuntu:16.04 relevant fixed versions and status.

A flaw was found in xorg-x11-server in versions before 1.20.11. An integer underflow can occur in xserver which can lead to a local privilege escalation. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability.

References

CVSS Scores

version 3.1