{
  "threat_severity" : "Important",
  "public_date" : "2011-04-05T00:00:00Z",
  "bugzilla" : {
    "description" : "dhclient: insufficient sanitization of certain DHCP response values",
    "id" : "689832",
    "url" : "https://bugzilla.redhat.com/show_bug.cgi?id=689832"
  },
  "cvss" : {
    "cvss_base_score" : "7.9",
    "cvss_scoring_vector" : "AV:A/AC:M/Au:N/C:C/I:C/A:C",
    "status" : "verified"
  },
  "cwe" : "CWE-78",
  "details" : [ "dhclient in ISC DHCP 3.0.x through 4.2.x before 4.2.1-P1, 3.1-ESV before 3.1-ESV-R1, and 4.1-ESV before 4.1-ESV-R2 allows remote attackers to execute arbitrary commands via shell metacharacters in a hostname obtained from a DHCP message, as demonstrated by a hostname that is provided to dhclient-script." ],
  "acknowledgement" : "Red Hat would like to thank Sebastian Krahmer (SuSE Security Team) for reporting this issue.",
  "affected_release" : [ {
    "product_name" : "Red Hat Enterprise Linux 3 Extended Lifecycle Support",
    "release_date" : "2011-05-31T00:00:00Z",
    "advisory" : "RHSA-2011:0840",
    "cpe" : "cpe:/o:redhat:rhel_els:3",
    "package" : "dhcp-7:3.0.1-10.3_EL3"
  }, {
    "product_name" : "Red Hat Enterprise Linux 4",
    "release_date" : "2011-04-08T00:00:00Z",
    "advisory" : "RHSA-2011:0428",
    "cpe" : "cpe:/o:redhat:enterprise_linux:4",
    "package" : "dhcp-7:3.0.1-67.el4"
  }, {
    "product_name" : "Red Hat Enterprise Linux 5",
    "release_date" : "2011-04-08T00:00:00Z",
    "advisory" : "RHSA-2011:0428",
    "cpe" : "cpe:/o:redhat:enterprise_linux:5",
    "package" : "dhcp-12:3.0.5-23.el5_6.4"
  }, {
    "product_name" : "Red Hat Enterprise Linux 6",
    "release_date" : "2011-04-08T00:00:00Z",
    "advisory" : "RHSA-2011:0428",
    "cpe" : "cpe:/o:redhat:enterprise_linux:6",
    "package" : "dhcp-12:4.1.1-12.P1.el6_0.4"
  } ],
  "references" : [ "https://www.cve.org/CVERecord?id=CVE-2011-0997\nhttps://nvd.nist.gov/vuln/detail/CVE-2011-0997" ],
  "name" : "CVE-2011-0997",
  "csaw" : false
}