Improper Input Validation Affecting xorg-server-hwe-16.04 package, versions <2:1.19.3-1ubuntu1~16.04.4


Severity

Recommended
medium

Based on Ubuntu security rating

    Threat Intelligence

    EPSS
    0.83% (83rd percentile)

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  • Snyk ID SNYK-UBUNTU1604-XORGSERVERHWE1604-278444
  • published 24 Jan 2018
  • disclosed 24 Jan 2018

How to fix?

Upgrade Ubuntu:16.04 xorg-server-hwe-16.04 to version 2:1.19.3-1ubuntu1~16.04.4 or higher.

NVD Description

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

xorg-x11-server before 1.19.5 had wrong extra length check in ProcXIChangeHierarchy function allowing malicious X client to cause X server to crash or possibly execute arbitrary code.