{
  "modified": "2025-08-09T19:01:28Z",
  "published": "2011-08-19T17:55:03Z",
  "id": "CVE-2011-2895",
  "details": "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.",
  "references": [
    {
      "type": "ADVISORY",
      "url": "http://ftp.netbsd.org/pub/NetBSD/security/advisories/NetBSD-SA2011-007.txt.asc"
    },
    {
      "type": "ADVISORY",
      "url": "http://secunia.com/advisories/45544"
    },
    {
      "type": "ADVISORY",
      "url": "http://secunia.com/advisories/45568"
    },
    {
      "type": "ADVISORY",
      "url": "http://secunia.com/advisories/45599"
    },
    {
      "type": "ADVISORY",
      "url": "http://secunia.com/advisories/45986"
    },
    {
      "type": "ADVISORY",
      "url": "http://secunia.com/advisories/46127"
    },
    {
      "type": "ADVISORY",
      "url": "http://secunia.com/advisories/48951"
    },
    {
      "type": "ADVISORY",
      "url": "http://www.debian.org/security/2011/dsa-2293"
    },
    {
      "type": "ADVISORY",
      "url": "http://www.mandriva.com/security/advisories?name=MDVSA-2011:153"
    },
    {
      "type": "ADVISORY",
      "url": "http://www.redhat.com/support/errata/RHSA-2011-1154.html"
    },
    {
      "type": "ADVISORY",
      "url": "http://www.redhat.com/support/errata/RHSA-2011-1155.html"
    },
    {
      "type": "ADVISORY",
      "url": "http://www.redhat.com/support/errata/RHSA-2011-1161.html"
    },
    {
      "type": "ADVISORY",
      "url": "http://www.ubuntu.com/usn/USN-1191-1"
    },
    {
      "type": "FIX",
      "url": "http://cgit.freedesktop.org/xorg/lib/libXfont/commit/?id=d11ee5886e9d9ec610051a206b135a4cdc1e09a0"
    },
    {
      "type": "FIX",
      "url": "http://lists.freedesktop.org/archives/xorg-announce/2011-August/001721.html"
    },
    {
      "type": "FIX",
      "url": "http://lists.freedesktop.org/archives/xorg-announce/2011-August/001722.html"
    },
    {
      "type": "FIX",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=725760"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=727624"
    },
    {
      "type": "WEB",
      "url": "http://lists.apple.com/archives/security-announce/2012/Feb/msg00000.html"
    },
    {
      "type": "WEB",
      "url": "http://lists.apple.com/archives/security-announce/2012/May/msg00001.html"
    },
    {
      "type": "WEB",
      "url": "http://lists.apple.com/archives/security-announce/2015/Dec/msg00000.html"
    },
    {
      "type": "WEB",
      "url": "http://lists.apple.com/archives/security-announce/2015/Dec/msg00001.html"
    },
    {
      "type": "WEB",
      "url": "http://lists.apple.com/archives/security-announce/2015/Dec/msg00002.html"
    },
    {
      "type": "WEB",
      "url": "http://lists.apple.com/archives/security-announce/2015/Dec/msg00005.html"
    },
    {
      "type": "WEB",
      "url": "http://lists.opensuse.org/opensuse-security-announce/2011-09/msg00019.html"
    },
    {
      "type": "WEB",
      "url": "http://lists.opensuse.org/opensuse-security-announce/2011-12/msg00004.html"
    },
    {
      "type": "WEB",
      "url": "http://securitytracker.com/id?1025920"
    },
    {
      "type": "WEB",
      "url": "http://support.apple.com/kb/HT5130"
    },
    {
      "type": "WEB",
      "url": "http://support.apple.com/kb/HT5281"
    },
    {
      "type": "WEB",
      "url": "http://www.openbsd.org/cgi-bin/cvsweb/src/usr.bin/compress/zopen.c#rev1.17"
    },
    {
      "type": "WEB",
      "url": "http://www.openwall.com/lists/oss-security/2011/08/10/10"
    },
    {
      "type": "WEB",
      "url": "http://www.redhat.com/support/errata/RHSA-2011-1834.html"
    },
    {
      "type": "WEB",
      "url": "http://www.securityfocus.com/bid/49124"
    },
    {
      "type": "WEB",
      "url": "https://exchange.xforce.ibmcloud.com/vulnerabilities/69141"
    },
    {
      "type": "WEB",
      "url": "https://support.apple.com/HT205635"
    },
    {
      "type": "WEB",
      "url": "https://support.apple.com/HT205637"
    },
    {
      "type": "WEB",
      "url": "https://support.apple.com/HT205640"
    },
    {
      "type": "WEB",
      "url": "https://support.apple.com/HT205641"
    }
  ]
}