{
  "threat_severity" : "Important",
  "public_date" : "2011-08-10T00:00:00Z",
  "bugzilla" : {
    "description" : "BSD compress LZW decoder buffer overflow",
    "id" : "727624",
    "url" : "https://bugzilla.redhat.com/show_bug.cgi?id=727624"
  },
  "cvss" : {
    "cvss_base_score" : "6.9",
    "cvss_scoring_vector" : "AV:L/AC:M/Au:N/C:C/I:C/A:C",
    "status" : "verified"
  },
  "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." ],
  "affected_release" : [ {
    "product_name" : "Red Hat Enterprise Linux 4",
    "release_date" : "2011-08-11T00:00:00Z",
    "advisory" : "RHSA-2011:1155",
    "cpe" : "cpe:/o:redhat:enterprise_linux:4",
    "package" : "xorg-x11-0:6.8.2-1.EL.69"
  }, {
    "product_name" : "Red Hat Enterprise Linux 4",
    "release_date" : "2011-08-15T00:00:00Z",
    "advisory" : "RHSA-2011:1161",
    "cpe" : "cpe:/o:redhat:enterprise_linux:4",
    "package" : "freetype-0:2.1.9-19.el4",
    "impact" : "moderate"
  }, {
    "product_name" : "Red Hat Enterprise Linux 5",
    "release_date" : "2011-08-11T00:00:00Z",
    "advisory" : "RHSA-2011:1154",
    "cpe" : "cpe:/o:redhat:enterprise_linux:5",
    "package" : "libXfont-0:1.2.2-1.0.4.el5_7"
  }, {
    "product_name" : "Red Hat Enterprise Linux 5.6 EUS - Server Only",
    "release_date" : "2011-12-19T00:00:00Z",
    "advisory" : "RHSA-2011:1834",
    "cpe" : "cpe:/o:redhat:rhel_eus:5.6",
    "package" : "libXfont-0:1.2.2-1.0.3.el5_6"
  }, {
    "product_name" : "Red Hat Enterprise Linux 6",
    "release_date" : "2011-08-11T00:00:00Z",
    "advisory" : "RHSA-2011:1154",
    "cpe" : "cpe:/o:redhat:enterprise_linux:6",
    "package" : "libXfont-0:1.4.1-2.el6_1"
  } ],
  "package_state" : [ {
    "product_name" : "Red Hat Enterprise Linux 4",
    "fix_state" : "Not affected",
    "package_name" : "busybox",
    "cpe" : "cpe:/o:redhat:enterprise_linux:4",
    "impact" : "low"
  }, {
    "product_name" : "Red Hat Enterprise Linux 4",
    "fix_state" : "Not affected",
    "package_name" : "gzip",
    "cpe" : "cpe:/o:redhat:enterprise_linux:4"
  }, {
    "product_name" : "Red Hat Enterprise Linux 4",
    "fix_state" : "Not affected",
    "package_name" : "mailx",
    "cpe" : "cpe:/o:redhat:enterprise_linux:4"
  }, {
    "product_name" : "Red Hat Enterprise Linux 4",
    "fix_state" : "Not affected",
    "package_name" : "ncompress",
    "cpe" : "cpe:/o:redhat:enterprise_linux:4"
  }, {
    "product_name" : "Red Hat Enterprise Linux 5",
    "fix_state" : "Not affected",
    "package_name" : "busybox",
    "cpe" : "cpe:/o:redhat:enterprise_linux:5",
    "impact" : "low"
  }, {
    "product_name" : "Red Hat Enterprise Linux 5",
    "fix_state" : "Not affected",
    "package_name" : "freetype",
    "cpe" : "cpe:/o:redhat:enterprise_linux:5"
  }, {
    "product_name" : "Red Hat Enterprise Linux 5",
    "fix_state" : "Not affected",
    "package_name" : "gzip",
    "cpe" : "cpe:/o:redhat:enterprise_linux:5"
  }, {
    "product_name" : "Red Hat Enterprise Linux 5",
    "fix_state" : "Not affected",
    "package_name" : "mailx",
    "cpe" : "cpe:/o:redhat:enterprise_linux:5"
  }, {
    "product_name" : "Red Hat Enterprise Linux 5",
    "fix_state" : "Not affected",
    "package_name" : "ncompress",
    "cpe" : "cpe:/o:redhat:enterprise_linux:5"
  }, {
    "product_name" : "Red Hat Enterprise Linux 6",
    "fix_state" : "Not affected",
    "package_name" : "busybox",
    "cpe" : "cpe:/o:redhat:enterprise_linux:6",
    "impact" : "low"
  }, {
    "product_name" : "Red Hat Enterprise Linux 6",
    "fix_state" : "Not affected",
    "package_name" : "freetype",
    "cpe" : "cpe:/o:redhat:enterprise_linux:6"
  }, {
    "product_name" : "Red Hat Enterprise Linux 6",
    "fix_state" : "Not affected",
    "package_name" : "gzip",
    "cpe" : "cpe:/o:redhat:enterprise_linux:6"
  }, {
    "product_name" : "Red Hat Enterprise Linux 6",
    "fix_state" : "Not affected",
    "package_name" : "libarchive",
    "cpe" : "cpe:/o:redhat:enterprise_linux:6"
  }, {
    "product_name" : "Red Hat Enterprise Linux 6",
    "fix_state" : "Will not fix",
    "package_name" : "mailx",
    "cpe" : "cpe:/o:redhat:enterprise_linux:6"
  }, {
    "product_name" : "Red Hat Enterprise Linux 6",
    "fix_state" : "Not affected",
    "package_name" : "ncompress",
    "cpe" : "cpe:/o:redhat:enterprise_linux:6"
  } ],
  "references" : [ "https://www.cve.org/CVERecord?id=CVE-2011-2895\nhttps://nvd.nist.gov/vuln/detail/CVE-2011-2895" ],
  "name" : "CVE-2011-2895",
  "csaw" : false
}