Unrated severityNVD Advisory· Published Aug 19, 2011· Updated Apr 29, 2026
CVE-2011-2895
CVE-2011-2895
Description
The LZW decompressor in (1) the BufCompressedFill function in fontfile/decompress.c in X.Org libXfont before 1.4.4 and (2) compress/compress.c in 4.3BSD, as used in zopen.c in OpenBSD before 3.8, FreeBSD, NetBSD 4.0.x and 5.0.x before 5.0.3 and 5.1.x before 5.1.1, FreeType 2.1.9, and other products, does not properly handle code words that are absent from the decompression table when encountered, which allows context-dependent 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-2011-2896.
Affected products
21cpe:2.3:o:openbsd:openbsd:*:*:*:*:*:*:*:*+ 17 more
- cpe:2.3:o:openbsd:openbsd:*:*:*:*:*:*:*:*range: <=3.7
- cpe:2.3:o:openbsd:openbsd:2.0:*:*:*:*:*:*:*
- cpe:2.3:o:openbsd:openbsd:2.1:*:*:*:*:*:*:*
- cpe:2.3:o:openbsd:openbsd:2.2:*:*:*:*:*:*:*
- cpe:2.3:o:openbsd:openbsd:2.3:*:*:*:*:*:*:*
- cpe:2.3:o:openbsd:openbsd:2.4:*:*:*:*:*:*:*
- cpe:2.3:o:openbsd:openbsd:2.5:*:*:*:*:*:*:*
- cpe:2.3:o:openbsd:openbsd:2.6:*:*:*:*:*:*:*
- cpe:2.3:o:openbsd:openbsd:2.7:*:*:*:*:*:*:*
- cpe:2.3:o:openbsd:openbsd:2.8:*:*:*:*:*:*:*
- cpe:2.3:o:openbsd:openbsd:2.9:*:*:*:*:*:*:*
- cpe:2.3:o:openbsd:openbsd:3.0:*:*:*:*:*:*:*
- cpe:2.3:o:openbsd:openbsd:3.1:*:*:*:*:*:*:*
- cpe:2.3:o:openbsd:openbsd:3.2:*:*:*:*:*:*:*
- cpe:2.3:o:openbsd:openbsd:3.3:*:*:*:*:*:*:*
- cpe:2.3:o:openbsd:openbsd:3.4:*:*:*:*:*:*:*
- cpe:2.3:o:openbsd:openbsd:3.5:*:*:*:*:*:*:*
- cpe:2.3:o:openbsd:openbsd:3.6:*:*:*:*:*:*:*
Patches
0No patches discovered yet.
Vulnerability mechanics
AI mechanics synthesis has not run for this CVE yet.
References
38- cgit.freedesktop.org/xorg/lib/libXfont/commit/nvdPatch
- lists.freedesktop.org/archives/xorg-announce/2011-August/001721.htmlnvdPatch
- lists.freedesktop.org/archives/xorg-announce/2011-August/001722.htmlnvdPatch
- bugzilla.redhat.com/show_bug.cginvdPatch
- secunia.com/advisories/45544nvdVendor Advisory
- secunia.com/advisories/45568nvdVendor Advisory
- secunia.com/advisories/45599nvdVendor Advisory
- www.redhat.com/support/errata/RHSA-2011-1154.htmlnvdVendor Advisory
- www.redhat.com/support/errata/RHSA-2011-1155.htmlnvdVendor Advisory
- www.redhat.com/support/errata/RHSA-2011-1161.htmlnvdVendor Advisory
- ftp.netbsd.org/pub/NetBSD/security/advisories/NetBSD-SA2011-007.txt.ascnvd
- lists.apple.com/archives/security-announce/2012/Feb/msg00000.htmlnvd
- lists.apple.com/archives/security-announce/2012/May/msg00001.htmlnvd
- lists.apple.com/archives/security-announce/2015/Dec/msg00000.htmlnvd
- lists.apple.com/archives/security-announce/2015/Dec/msg00001.htmlnvd
- lists.apple.com/archives/security-announce/2015/Dec/msg00002.htmlnvd
- lists.apple.com/archives/security-announce/2015/Dec/msg00005.htmlnvd
- lists.opensuse.org/opensuse-security-announce/2011-09/msg00019.htmlnvd
- lists.opensuse.org/opensuse-security-announce/2011-12/msg00004.htmlnvd
- secunia.com/advisories/45986nvd
- secunia.com/advisories/46127nvd
- secunia.com/advisories/48951nvd
- securitytracker.com/idnvd
- support.apple.com/kb/HT5130nvd
- support.apple.com/kb/HT5281nvd
- www.debian.org/security/2011/dsa-2293nvd
- www.mandriva.com/security/advisoriesnvd
- www.openbsd.org/cgi-bin/cvsweb/src/usr.bin/compress/zopen.cnvd
- www.openwall.com/lists/oss-security/2011/08/10/10nvd
- www.redhat.com/support/errata/RHSA-2011-1834.htmlnvd
- www.securityfocus.com/bid/49124nvd
- www.ubuntu.com/usn/USN-1191-1nvd
- bugzilla.redhat.com/show_bug.cginvd
- exchange.xforce.ibmcloud.com/vulnerabilities/69141nvd
- support.apple.com/HT205635nvd
- support.apple.com/HT205637nvd
- support.apple.com/HT205640nvd
- support.apple.com/HT205641nvd
News mentions
0No linked articles in our index yet.