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CVE Reference: CVE-2011-2895
NOTE: The text on this page is written by CVE MITRE and reflects neither the opinions of Secunia or the results of our research. All data on this page is written and maintained by CVE MITRE.

Original Page at CVE MITRE:
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.

CVE Status:
Candidate

References:

XF
  http://xforce.iss.net/xforce/xfdb/69141

UBUNTU
  http://www.ubuntu.com/usn/USN-1191-1

SUSE
  http://lists.opensuse.org/opensuse-security-announce/2011-12/msg00004.html
  http://lists.opensuse.org/opensuse-security-announce/2011-09/msg00019.html

ST
  1025920

SAID
  Secunia Advisory: SA45986
  Secunia Advisory: SA46127
  Secunia Advisory: SA48951
  Secunia Advisory: SA45544
  Secunia Advisory: SA45568
  Secunia Advisory: SA45599

REDHAT
  http://www.redhat.com/support/errata/RHSA-2011-1154.html
  http://www.redhat.com/support/errata/RHSA-2011-1155.html
  http://www.redhat.com/support/errata/RHSA-2011-1161.html
  http://www.redhat.com/support/errata/RHSA-2011-1834.html

NETBSD
  http://ftp.netbsd.org/pub/NetBSD/security/advisories/NetBSD-SA2011-007.txt.asc

MLIST
  http://lists.freedesktop.org/archives/xorg-announce/2011-August/001722.html
  http://lists.freedesktop.org/archives/xorg-announce/2011-August/001721.html
  http://www.openwall.com/lists/oss-security/2011/08/10/10

MANDRIVA
  http://www.mandriva.com/security/advisories?name=MDVSA-2011:153

DEBIAN
  http://www.debian.org/security/2011/dsa-2293

CONFIRM
  http://support.apple.com/kb/HT5281
  http://support.apple.com/kb/HT5130
  http://www.openbsd.org/cgi-bin/cvsweb/src/usr.bin/compress/zopen.c#rev1.17
  http://cgit.freedesktop.org/xorg/lib/libXfont/commit/?id=d11ee5886e9d9ec610051a206b135a4cdc1e09a0

BID
  49124

APPLE
  http://lists.apple.com/archives/security-announce/2012/May/msg00001.html
  http://lists.apple.com/archives/security-announce/2012/Feb/msg00000.html


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