CVE-2016-7949

Description

Multiple buffer overflows in the (1) XvQueryAdaptors and (2) XvQueryEncodings functions in X.org libXrender before 0.9.10 allow remote X servers to trigger out-of-bounds write operations via vectors involving length fields.

Category

9.8
CVSS
Severity: Critical
CVSS 3.0 •
CVSS 2.0 •
EPSS 4.34% Top 15%
Vendor Advisory gentoo.org Vendor Advisory fedoraproject.org Vendor Advisory fedoraproject.org
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
http://www.securitytracker.com/id/1036945 vdb entry
https://security.gentoo.org/glsa/201704-03 vendor advisory
https://cgit.freedesktop.org/xorg/lib/libXrender/commit/?id=9362c7ddd1af3b168953d0737877bc52d79c94f4
https://lists.x.org/archives/xorg-announce/2016-October/002720.html mailing list
http://www.securityfocus.com/bid/93366 vdb entry
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ZHUT5YOSWVMBJNWZGUQNZRBFIZKRM4A6/ vendor advisory
http://www.openwall.com/lists/oss-security/2016/10/04/4 mailing list
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/7WCKZFMZ76APAVMIRCUKKHEB4GAS7ZUP/ vendor advisory
http://www.openwall.com/lists/oss-security/2016/10/04/2 mailing list

Frequently Asked Questions

What is the severity of CVE-2016-7949?
CVE-2016-7949 has been scored as a critical severity vulnerability.
How to fix CVE-2016-7949?
To fix CVE-2016-7949, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2016-7949 being actively exploited in the wild?
It is possible that CVE-2016-7949 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~4% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
This platform uses data from the NIST NVD, MITRE CVE, MITRE CWE, First.org and CISA KEV but is not endorsed or certified by these entities. CVE is a registred trademark of the MITRE Corporation and the authoritative source of CVE content is MITRE's CVE web site. CWE is a registred trademark of the MITRE Corporation and the authoritative source of CWE content is MITRE's CWE web site.
© 2025 Under My Watch. All Rights Reserved.