CVE-2013-7439
Multiple off-by-one errors in the (1) MakeBigReq and (2) SetReqLen macros in include/X11/Xlibint.h in X11R6.x and libX11 before 1.6.0 allow remote attackers to have unspecified impact via a crafted request, which triggers a buffer overflow.
Date published : 2015-04-16
http://www.securityfocus.com/bid/73962
http://www.oracle.com/technetwork/topics/security/bulletinjul2015-2511963.html