Out-of-bounds Write Affecting libx11 package, versions <2:1.6.3-1ubuntu2.1
Snyk CVSS
Attack Complexity
Low
Confidentiality
High
Integrity
High
Availability
High
Threat Intelligence
EPSS
1.4% (87th
percentile)
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Test your applications- Snyk ID SNYK-UBUNTU1604-LIBX11-339106
- published 13 Dec 2016
- disclosed 13 Dec 2016
Introduced: 13 Dec 2016
CVE-2016-7943 Open this link in a new tabHow to fix?
Upgrade Ubuntu:16.04
libx11
to version 2:1.6.3-1ubuntu2.1 or higher.
NVD Description
Note: Versions mentioned in the description apply only to the upstream libx11
package and not the libx11
package as distributed by Ubuntu
.
See How to fix?
for Ubuntu:16.04
relevant fixed versions and status.
The XListFonts function in X.org libX11 before 1.6.4 might allow remote X servers to gain privileges via vectors involving length fields, which trigger out-of-bounds write operations.
References
- http://people.ubuntu.com/~ubuntu-security/cve/CVE-2016-7943
- https://cgit.freedesktop.org/xorg/lib/libX11/commit/?id=8c29f1607a31dac0911e45a0dd3d74173822b3c9
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-7943
- https://security-tracker.debian.org/tracker/CVE-2016-7943
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/GMCVDXMFPXR7QGMKDG22WPPJCXH2X3L7/
- https://security.gentoo.org/glsa/201704-03
- 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/93362
- http://www.securitytracker.com/id/1036945
- https://usn.ubuntu.com/3758-1/
- https://usn.ubuntu.com/3758-2/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/GMCVDXMFPXR7QGMKDG22WPPJCXH2X3L7/