#VU82525 Buffer overflow in libx11 - CVE-2013-7439
Published: October 27, 2023
Vulnerability identifier: #VU82525
Vulnerability risk: Medium
CVSSv4.0: 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-2013-7439
CWE-ID: CWE-119
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerable software:
libx11
libx11
Software vendor:
xorg.freedesktop.org
xorg.freedesktop.org
Description
The vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists due to multiple off-by-one errors in the MakeBigReq and SetReqLen macros in include/X11/Xlibint.h in X11R6.x and libX11. A remote attacker can create a specially crafted request, trigger buffer overflow and execute arbitrary code on the target system.
Remediation
Install updates from vendor's website.
External links
- http://lists.x.org/archives/xorg-announce/2015-April/002561.html
- http://seclists.org/oss-sec/2015/q2/81
- http://www.debian.org/security/2015/dsa-3224
- http://www.oracle.com/technetwork/topics/security/bulletinjul2015-2511963.html
- http://www.securityfocus.com/bid/73962
- http://www.ubuntu.com/usn/USN-2568-1
- https://bugs.freedesktop.org/show_bug.cgi?id=56508