Input validation error in libx11 - CVE-2013-1981
Published: June 15, 2013 / Updated: August 4, 2020
Vulnerability identifier: #VU33897
CSH Severity: Medium
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2013-1981
CWE-ID: CWE-20
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: xorg.freedesktop.org
Affected software:
libx11
libx11
Detailed vulnerability description
The vulnerability allows a remote non-authenticated attacker to read and manipulate data.
Multiple integer overflows in X.org libX11 1.5.99.901 (1.6 RC1) and earlier allow X servers to trigger allocation of insufficient memory and a buffer overflow via vectors related to the (1) XQueryFont, (2) _XF86BigfontQueryFont, (3) XListFontsWithInfo, (4) XGetMotionEvents, (5) XListHosts, (6) XGetModifierMapping, (7) XGetPointerMapping, (8) XGetKeyboardMapping, (9) XGetWindowProperty, (10) XGetImage, (11) LoadColornameDB, (12) XrmGetFileDatabase, (13) _XimParseStringFile, or (14) TransFileName functions. Additional products added per http://www.ubuntu.com/usn/USN-1854-1/
How to mitigate CVE-2013-1981
Install update from vendor's website.
Sources
- http://lists.fedoraproject.org/pipermail/package-announce/2013-May/106781.html
- http://www.debian.org/security/2013/dsa-2693
- http://www.openwall.com/lists/oss-security/2013/05/23/3
- http://www.securityfocus.com/bid/60120
- http://www.ubuntu.com/usn/USN-1854-1
- http://www.x.org/wiki/Development/Security/Advisory-2013-05-23