CVE-2011-2895
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,
02 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,
03 Exploitation and scoring
- Exploitation
- Not assessed. CISA has not published an exploitation assessment for this record, and it is not in the KEV catalog. That is an absence of assessment, not a finding of no risk.
- SSVC decision
- Not assessed by CISA
- EPSS probability
- 8.35% probability of exploitation activity in the next 30 days.
- EPSS percentile
- Equal to or higher than the score of 94.9% of scored records. A rank, not a probability.
- NVD base score
- The NVD has published no score for this record
- NVD CVSS vector
- No NVD score to derive
- NVD analysis status
- Modified. NVD last modified this record on 2026-06-16.
- Red Hat severity
- Important. Red Hat's rating for its own products, not a CVSS rating.
Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.
04 Metadata
- Published
- 2011-08-19 17:00Z15 YR AGO
- Last updated
- 2024-08-06 23:15Z2 YR AGO
- Reserved
- 2011-07-27
- Assigning CNA
- redhat
- Record state
- PUBLISHED
- Severity
- Not rated by the issuing CNA
- CNA CVSS vector
- Not published by the issuing CNA
- Weaknesses
- CWE-119Improper Restriction of Operations within the Bounds of a Memory BufferClass
- Data version
- 5.1
- Document digest
- a99a0b0c48b51e21dcb8df59322e7d66493c85d157f3123f9f74236403b1d3e7
05 Affected products
06 References
- support.apple.comhttps://support.apple.com/HT205635
- www.redhat.comRHSA-2011:1154http://www.redhat.com/support/errata/RHSA-2011-1154.html
- www.ubuntu.comUSN-1191-1http://www.ubuntu.com/usn/USN-1191-1
- www.openwall.com[oss-security] 20110810 LZW decompression issueshttp://www.openwall.com/lists/oss-security/2011/08/10/10
- bugzilla.redhat.comhttps://bugzilla.redhat.com/show_bug.cgi?id=725760
- secunia.com45544http://secunia.com/advisories/45544
- support.apple.comhttps://support.apple.com/HT205637
- support.apple.comhttp://support.apple.com/kb/HT5130
- lists.apple.comAPPLE-SA-2015-12-08-4http://lists.apple.com/archives/security-announce/2015/Dec/msg00002.html
- www.mandriva.comMDVSA-2011:153http://www.mandriva.com/security/advisories?name=MDVSA-2011:153
- www.securityfocus.com49124http://www.securityfocus.com/bid/49124
- secunia.com45599http://secunia.com/advisories/45599
- www.redhat.comRHSA-2011:1155http://www.redhat.com/support/errata/RHSA-2011-1155.html
- securitytracker.com1025920http://securitytracker.com/id?1025920
- lists.opensuse.orgopenSUSE-SU-2011:1299http://lists.opensuse.org/opensuse-security-announce/2011-12/msg00004.html
- lists.apple.comAPPLE-SA-2015-12-08-3http://lists.apple.com/archives/security-announce/2015/Dec/msg00005.html
- lists.opensuse.orgSUSE-SU-2011:1035http://lists.opensuse.org/opensuse-security-announce/2011-09/msg00019.html
- lists.apple.comAPPLE-SA-2012-02-01-1http://lists.apple.com/archives/security-announce/2012/Feb/msg00000.html
- lists.freedesktop.org[xorg-announce] 20110810 X.Org security advisory: libXfont LZW decompression heap corruptionhttp://lists.freedesktop.org/archives/xorg-announce/2011-August/001721.html
- secunia.com46127http://secunia.com/advisories/46127
- secunia.com45986http://secunia.com/advisories/45986
- www.redhat.comRHSA-2011:1161http://www.redhat.com/support/errata/RHSA-2011-1161.html
- www.redhat.comRHSA-2011:1834http://www.redhat.com/support/errata/RHSA-2011-1834.html
- www.openbsd.orghttp://www.openbsd.org/cgi-bin/cvsweb/src/usr.bin/compress/zopen.c#rev1.17
- exchange.xforce.ibmcloud.comxorg-lzw-bo(69141)https://exchange.xforce.ibmcloud.com/vulnerabilities/69141
- lists.apple.comAPPLE-SA-2015-12-08-1http://lists.apple.com/archives/security-announce/2015/Dec/msg00000.html
- secunia.com45568http://secunia.com/advisories/45568
- lists.freedesktop.org[xorg-announce] 20110810 [ANNOUNCE] libXfont 1.4.4http://lists.freedesktop.org/archives/xorg-announce/2011-August/001722.html
- support.apple.comhttps://support.apple.com/HT205641
- ftp.netbsd.orgNetBSD-SA2011-007http://ftp.netbsd.org/pub/NetBSD/security/advisories/NetBSD-SA2011-007.txt.asc
- support.apple.comhttps://support.apple.com/HT205640
- cgit.freedesktop.orghttp://cgit.freedesktop.org/xorg/lib/libXfont/commit/?id=d11ee5886e9d9ec610051a206b135a4cdc1e09a0
- secunia.com48951http://secunia.com/advisories/48951
- lists.apple.comAPPLE-SA-2015-12-08-2http://lists.apple.com/archives/security-announce/2015/Dec/msg00001.html
- support.apple.comhttp://support.apple.com/kb/HT5281
- lists.apple.comAPPLE-SA-2012-05-09-1http://lists.apple.com/archives/security-announce/2012/May/msg00001.html
- www.debian.orgDSA-2293http://www.debian.org/security/2011/dsa-2293
- bugzilla.redhat.comhttps://bugzilla.redhat.com/show_bug.cgi?id=727624
07 Fixed in
Debian 12
- libxfont Fixed in 1:1.4.4-1
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Debian 13
- libxfont Fixed in 1:1.4.4-1
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Debian 14
- libxfont Fixed in 1:1.4.4-1
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
A release or ecosystem missing from this list has no record here. It may be unaffected or not covered by the source. Source notices and licences.