Information disclosure in xorg-server - CVE-2015-0255

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Main Vulnerability Database Vulnerabilities #VU32437

Information disclosure in xorg-server - CVE-2015-0255

Published: February 13, 2015 / Updated: July 28, 2020


Vulnerability identifier: #VU32437
CSH Severity: Medium
CVSS v4: 6.9 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:L/SC:N/SI:N/SA:N]
CVE-ID: CVE-2015-0255
CWE-ID: CWE-200
Exploitation vector: Remote access
Exploit availability: No public exploit available

Vulnerability details

The vulnerability allows a remote non-authenticated attacker to #BASIC_IMPACT#.

X.Org Server (aka xserver and xorg-server) before 1.16.3 and 1.17.x before 1.17.1 allows remote attackers to obtain sensitive information from process memory or cause a denial of service (crash) via a crafted string length value in a XkbSetGeometry request.


Affected software

xorg-server
Amazon Linux AMI
Ubuntu
xorg-server (Alpine package)
xvnc4viewer (Ubuntu package)
vnc4server (Ubuntu package)
xserver-xorg-core (Ubuntu package)
xserver-xorg-core-lts-trusty (Ubuntu package)
xserver-xorg-core-lts-utopic (Ubuntu package)

How to mitigate CVE-2015-0255

Install update from vendor's website.

xorg-server (Alpine package) - update to 1.14.7-r0
xvnc4viewer (Ubuntu package) - addressed in versions 4.1.1+xorg4.3.0-37ubuntu5.0.2+esm1, 4.1.1+xorg4.3.0-37.3ubuntu2.1+esm1
vnc4server (Ubuntu package) - addressed in versions 4.1.1+xorg4.3.0-37ubuntu5.0.2+esm1, 4.1.1+xorg4.3.0-37.3ubuntu2.1+esm1
xserver-xorg-core (Ubuntu package) - addressed in versions 2:1.11.4-0ubuntu10.17, 2:1.15.1-0ubuntu2.7, 2:1.16.0-1ubuntu1.3
xserver-xorg-core-lts-trusty (Ubuntu package) - update to 2:1.15.1-0ubuntu2~precise5
xserver-xorg-core-lts-utopic (Ubuntu package) - update to 2:1.16.0-1ubuntu1.2~trusty2

External References

Related Security Bulletins