Access Restriction Bypass Affecting xorg-server package, versions [,1.19.4)


Severity

Recommended
0.0
medium
0
10

CVSS assessment made by Snyk's Security Team. Learn more

Threat Intelligence

EPSS
0.06% (30th percentile)

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  • Snyk IDSNYK-UNMANAGED-XORGSERVER-2371801
  • published26 Jan 2022
  • disclosed10 Oct 2017
  • creditUnknown

Introduced: 10 Oct 2017

CVE-2017-13721  (opens in a new tab)
CWE-264  (opens in a new tab)

How to fix?

Upgrade xorg-server to version 1.19.4 or higher.

Overview

Affected versions of this package are vulnerable to Access Restriction Bypass. In X.Org Server (aka xserver and xorg-server) before 1.19.4, an attacker authenticated to an X server with the X shared memory extension enabled can cause aborts of the X server or replace shared memory segments of other X clients in the same session.

References

CVSS Scores

version 3.1