Red Hat Security Advisory 2014-1436-02 - The X11 libraries provide library routines that are used within all X Window applications. Multiple integer overflow flaws, leading to heap-based buffer overflows, were found in the way various X11 client libraries handled certain protocol data. An attacker able to submit invalid protocol data to an X11 server via a malicious X11 client could use either of these flaws to potentially escalate their privileges on the system.
9bc4b5a9aabf00bcff355671d5717e02f39198aa036cfa96c9e9b2205910a13dUbuntu Security Notice 1867-1 - Ilja van Sprundel discovered multiple security issues in various X.org libraries and components. An attacker could use these issues to cause applications to crash, resulting in a denial of service, or possibly execute arbitrary code.
ff2548cf756ff1de09ed1372511e46f2447bc5b300289504ce3544ee993b02e8Debian Linux Security Advisory 2674-1 - Ilja van Sprundel of IOActive discovered several security issues in multiple components of the X.org graphics stack and the related conversions, buffer overflows, memory corruption and missing input sanitizing may lead to privilege escalation or denial of service.
8afc4286d2bbe5ea5912d78b68cf404d320aa23d4a3f0c060cd79a79b2759037
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