Vulnerability Details : CVE-2016-7943
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.
Products affected by CVE-2016-7943
- cpe:2.3:a:x.org:libx11:*:*:*:*:*:*:*:*
- cpe:2.3:o:fedoraproject:fedora:25:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2016-7943
3.09%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 86 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2016-7943
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
7.5
|
HIGH | AV:N/AC:L/Au:N/C:P/I:P/A:P |
10.0
|
6.4
|
NIST | |
|
9.8
|
CRITICAL | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
3.9
|
5.9
|
NIST |
CWE ids for CVE-2016-7943
-
The product writes data past the end, or before the beginning, of the intended buffer.Assigned by: nvd@nist.gov (Primary)
References for CVE-2016-7943
-
https://usn.ubuntu.com/3758-2/
USN-3758-2: libx11 vulnerabilities | Ubuntu security notices
-
https://lists.x.org/archives/xorg-announce/2016-October/002720.html
X.Org security advisory: Protocol handling issues in X Window System client libraries
-
https://security.gentoo.org/glsa/201704-03
X.Org: Multiple vulnerabilities (GLSA 201704-03) — Gentoo security
-
http://www.securitytracker.com/id/1036945
X Client Library Bugs Let Remote and Local Users Deny Service or Gain Elevated Privileges - SecurityTracker
-
https://usn.ubuntu.com/3758-1/
USN-3758-1: libx11 vulnerabilities | Ubuntu security notices
-
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/GMCVDXMFPXR7QGMKDG22WPPJCXH2X3L7/
[SECURITY] Fedora 25 Update: libX11-1.6.4-1.fc25 - package-announce - Fedora Mailing-Lists
-
http://www.openwall.com/lists/oss-security/2016/10/04/4
oss-security - Re: X.Org security advisory: Protocol handling issues in X Window System client libraries
-
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/GMCVDXMFPXR7QGMKDG22WPPJCXH2X3L7/
[SECURITY] Fedora 25 Update: libX11-1.6.4-1.fc25 - package-announce - Fedora Mailing-ListsThird Party Advisory
-
http://www.openwall.com/lists/oss-security/2016/10/04/2
oss-security - X.Org security advisory: Protocol handling issues in X Window System client libraries
-
https://cgit.freedesktop.org/xorg/lib/libX11/commit/?id=8c29f1607a31dac0911e45a0dd3d74173822b3c9
xorg/lib/libX11 - libX11 GIT Repository (mirrored from https://gitlab.freedesktop.org/xorg/lib/libx11)
-
http://www.securityfocus.com/bid/93362
X.Org libX11 CVE-2016-7943 Memory Corruption Vulnerability
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