Access Restriction Bypass Affecting libxfixes package, versions <1:5.0.3-1
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-UBUNTU1804-LIBXFIXES-275476
- published13 Dec 2016
- disclosed13 Dec 2016
Introduced: 13 Dec 2016
CVE-2016-7944 (opens in a new tab)How to fix?
Upgrade Ubuntu:18.04 libxfixes to version 1:5.0.3-1 or higher.
NVD Description
Note: Versions mentioned in the description apply only to the upstream libxfixes package and not the libxfixes package as distributed by Ubuntu.
See How to fix? for Ubuntu:18.04 relevant fixed versions and status.
Integer overflow in X.org libXfixes before 5.0.3 on 32-bit platforms might allow remote X servers to gain privileges via a length value of INT_MAX, which triggers the client to stop reading data and get out of sync.
References
- http://people.ubuntu.com/~ubuntu-security/cve/CVE-2016-7944
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-7944
- https://security-tracker.debian.org/tracker/CVE-2016-7944
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/4CE6VJWBMOWLSCH4OP4TAEPIA7NP53ON/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/GE43MDCRGS4R7MRRZNVSLREHRLU5OHCV/
- https://security.gentoo.org/glsa/201704-03
- https://cgit.freedesktop.org/xorg/lib/libXfixes/commit/?id=61c1039ee23a2d1de712843bed3480654d7ef42e
- https://lists.x.org/archives/xorg-announce/2016-October/002720.html
- 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/93361
- http://www.securitytracker.com/id/1036945
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/4CE6VJWBMOWLSCH4OP4TAEPIA7NP53ON/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/GE43MDCRGS4R7MRRZNVSLREHRLU5OHCV/