Out-of-bounds write in libxrender - CVE-2016-7950
Published: December 13, 2016 / Updated: July 28, 2020
Vulnerability identifier: #VU32234
CSH Severity: High
CVSS v4.0: 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/E:U/U:Amber
CVE-ID: CVE-2016-7950
CWE-ID: CWE-787
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: xorg.freedesktop.org
Affected software:
libxrender
libxrender
Detailed vulnerability description
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.
How to mitigate CVE-2016-7950
Install update from vendor's website.
Sources
- http://www.openwall.com/lists/oss-security/2016/10/04/2
- http://www.openwall.com/lists/oss-security/2016/10/04/4
- http://www.securityfocus.com/bid/93369
- http://www.securitytracker.com/id/1036945
- https://cgit.freedesktop.org/xorg/lib/libXrender/commit/?id=8fad00b0b647ee662ce4737ca15be033b7a21714
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/7WCKZFMZ76APAVMIRCUKKHEB4GAS7ZUP/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/ZHUT5YOSWVMBJNWZGUQNZRBFIZKRM4A6/
- https://lists.x.org/archives/xorg-announce/2016-October/002720.html
- https://security.gentoo.org/glsa/201704-03