The LZW decompressor in the LWZReadByte function in giftoppm.c in the David Koblas GIF decoder in PBMPLUS, as used in the gif_read_lzw function in filter/image-gif.c in CUPS before 1.4.7, the LZWReadByte function in plug-ins/common/file-gif-load.c in GIMP 2.6.11 and earlier, the LZWReadByte function in img/gifread.c in XPCE in SWI-Prolog 5.10.4 and earlier, and other products, does not properly handle code words that are absent from the decompression table when encountered, which allows remote attackers to trigger an infinite loop or a heap-based buffer overflow, and possibly execute arbitrary code, via a crafted compressed stream, a related issue to CVE-2006-1168 and CVE-2011-2895.
https://bugzilla.redhat.com/show_bug.cgi?id=727800
http://git.gnome.org/browse/gimp/commit/?id=376ad788c1a1c31d40f18494889c383f6909ebfc
https://bugzilla.redhat.com/show_bug.cgi?id=730338
http://secunia.com/advisories/45621
http://www.openwall.com/lists/oss-security/2011/08/10/10
http://www.ubuntu.com/usn/USN-1207-1
http://lists.fedoraproject.org/pipermail/package-announce/2011-September/065527.html
http://lists.fedoraproject.org/pipermail/package-announce/2011-September/065550.html
http://secunia.com/advisories/46024
http://lists.fedoraproject.org/pipermail/package-announce/2011-September/065651.html
http://www.securitytracker.com/id?1025929
http://lists.fedoraproject.org/pipermail/package-announce/2011-August/064873.html
http://lists.fedoraproject.org/pipermail/package-announce/2011-August/064600.html
http://secunia.com/advisories/45945
http://lists.fedoraproject.org/pipermail/package-announce/2011-September/065539.html
http://secunia.com/advisories/45948
http://www.securityfocus.com/bid/49148
http://www.swi-prolog.org/bugzilla/show_bug.cgi?id=7#c4
http://secunia.com/advisories/45900
http://www.ubuntu.com/usn/USN-1214-1
http://www.mandriva.com/security/advisories?name=MDVSA-2011:146
http://www.redhat.com/support/errata/RHSA-2011-1635.html
http://www.mandriva.com/security/advisories?name=MDVSA-2011:167
http://rhn.redhat.com/errata/RHSA-2012-1180.html
http://rhn.redhat.com/errata/RHSA-2012-1181.html
http://secunia.com/advisories/50737
http://security.gentoo.org/glsa/glsa-201209-23.xml
http://www.debian.org/security/2011/dsa-2354
http://secunia.com/advisories/48236