Out-of-bounds write in libxrender - CVE-2016-7950

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Main Vulnerability Database Vulnerabilities #VU32234

Out-of-bounds write in libxrender - CVE-2016-7950

Published: December 13, 2016 / Updated: July 28, 2020


Vulnerability identifier: #VU32234
CSH Severity: High
CVSS v4: 9.3 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2016-7950
CWE-ID: CWE-787
Exploitation vector: Remote access
Exploit availability: No public exploit available

Vulnerability details

The vulnerability allows a remote non-authenticated attacker to execute arbitrary code.

The XRenderQueryFilters function in X.org libXrender before 0.9.10 allows remote X servers to trigger out-of-bounds write operations via vectors involving filter name lengths.


Affected software

libxrender
Gentoo Linux
Slackware Linux
Ubuntu
Fedora
libxrender (Alpine package)
libXrender
libxrender1 (Ubuntu package)

How to mitigate CVE-2016-7950

Install update from vendor's website.

libxrender - update to 0.9.10
libxrender (Alpine package) - update to 0.9.8-r1
libXrender - addressed in versions 0.9.10-1.fc23, 0.9.10-1.fc24, 0.9.10-1.fc25
libxrender1 (Ubuntu package) - update to 1:0.9.90ubuntu1+esm1

External References

Related Security Bulletins