CVE-2013-2004 – libX11: unbounded recursion leading to stack-overflow

https://notcve.org/view.php?id=CVE-2013-2004

The (1) GetDatabase and (2) _XimParseStringFile functions in X.org libX11 1.5.99.901 (1.6 RC1) and earlier do not restrict the recursion depth when processing directives to include files, which allows X servers to cause a denial of service (stack consumption) via a crafted file. Las funciones (1) GetDatabase y (2) _XimParseStringFile en X.org libX11 v1.5.99.901 (1.6 RC1) y anteriores no limitan la profundidad de recursividad en el tratamiento de las directivas de inclusión de archivos, lo que permite causar una denegación de servicio a los servidores X (por consumo de pila) a través de un archivo diseñado para tal fin. Two stack-based buffer overflow flaws were found in the way libX11, the Core X11 protocol client library, processed certain user-specified files. A malicious X11 server could possibly use this flaw to crash an X11 client via a specially crafted file. • http://www.debian.org/security/2013/dsa-2693 http://www.openwall.com/lists/oss-security/2013/05/23/3 http://www.ubuntu.com/usn/USN-1854-1 http://www.x.org/wiki/Development/Security/Advisory-2013-05-23 https://access.redhat.com/security/cve/CVE-2013-2004 https://bugzilla.redhat.com/show_bug.cgi?id=959112 • CWE-119: Improper Restriction of Operations within the Bounds of a Memory Buffer CWE-121: Stack-based Buffer Overflow •