Alan Coopersmith
2013-Oct-08 20:20 UTC
X.Org security advisory: CVE-2013-4396: Use after free in Xserver handling of ImageText requests
X.Org Security Advisory: October 8, 2013 - CVE-2013-4396 Use after free in Xserver handling of ImageText requests ======================================================= Description: =========== Pedro Ribeiro (pedrib at gmail.com) reported an issue to the X.Org security team in which an authenticated X client can cause an X server to use memory after it was freed, potentially leading to crash and/or memory corruption. Affected Versions ================ This bug appears to have been introduced in RCS version 1.42 on 1993/09/18, and is thus believed to be present in every X server release starting with X11R6.0 up to the current xorg-server 1.14.3. (Manual inspection shows it is present in the sources from the X11R6 tarballs, but not in those from the X11R5 tarballs.) Fixes ==== A fix is available via the attached patch, which is intended to be included in xorg-server 1.15.0 and 1.14.4. Thanks ===== X.Org thanks Pedro Ribeiro for reporting this issues to our security team at xorg-security at lists.x.org. -- -Alan Coopersmith- alan.coopersmith at oracle.com X.Org Security Response Team - xorg-security at lists.x.org -------------- next part --------------