{
  "threat_severity" : "Moderate",
  "public_date" : "2011-02-07T00:00:00Z",
  "bugzilla" : {
    "description" : "kernel: no access restrictions of /proc/pid/* after setuid program exec",
    "id" : "680358",
    "url" : "https://bugzilla.redhat.com/show_bug.cgi?id=680358"
  },
  "cvss" : {
    "cvss_base_score" : "3.6",
    "cvss_scoring_vector" : "AV:L/AC:L/Au:N/C:P/I:P/A:N",
    "status" : "verified"
  },
  "details" : [ "The proc filesystem implementation in the Linux kernel 2.6.37 and earlier does not restrict access to the /proc directory tree of a process after this process performs an exec of a setuid program, which allows local users to obtain sensitive information or cause a denial of service via open, lseek, read, and write system calls." ],
  "statement" : "Red Hat Enterprise Linux 4 is now in Production 3 of the maintenance life-cycle, https://access.redhat.com/support/policy/updates/errata/, therefore the fix for this issue is not currently planned to be included in the future updates.\nThis has been addressed in Red Hat Enterprise Linux 5, 6 and Red Hat Enterprise MRG via RHSA-2012:0007, RHSA-2011:1530 and RHSA-2011:1253 respectively.",
  "acknowledgement" : "Red Hat would like to thank Kees Cook for reporting this issue.",
  "affected_release" : [ {
    "product_name" : "Red Hat Enterprise Linux 5",
    "release_date" : "2012-01-10T00:00:00Z",
    "advisory" : "RHSA-2012:0007",
    "cpe" : "cpe:/o:redhat:enterprise_linux:5",
    "package" : "kernel-0:2.6.18-274.17.1.el5"
  }, {
    "product_name" : "Red Hat Enterprise Linux 6",
    "release_date" : "2011-12-05T00:00:00Z",
    "advisory" : "RHSA-2011:1530",
    "cpe" : "cpe:/o:redhat:enterprise_linux:6",
    "package" : "kernel-0:2.6.32-220.el6"
  }, {
    "product_name" : "Red Hat Enterprise Linux 6.1 EUS - Server Only",
    "release_date" : "2012-02-15T00:00:00Z",
    "advisory" : "RHSA-2012:0116",
    "cpe" : "cpe:/o:redhat:rhel_eus:6.1",
    "package" : "kernel-0:2.6.32-131.25.1.el6"
  }, {
    "product_name" : "Red Hat Enterprise MRG 2",
    "release_date" : "2011-09-12T00:00:00Z",
    "advisory" : "RHSA-2011:1253",
    "cpe" : "cpe:/a:redhat:enterprise_mrg:2:server:el6",
    "package" : "kernel-rt-0:2.6.33.9-rt31.75.el6rt"
  } ],
  "package_state" : [ {
    "product_name" : "Red Hat Enterprise Linux 4",
    "fix_state" : "Affected",
    "package_name" : "kernel",
    "cpe" : "cpe:/o:redhat:enterprise_linux:4"
  }, {
    "product_name" : "Red Hat Enterprise MRG 1",
    "fix_state" : "Affected",
    "package_name" : "kernel-rt",
    "cpe" : "cpe:/a:redhat:enterprise_mrg:1"
  } ],
  "references" : [ "https://www.cve.org/CVERecord?id=CVE-2011-1020\nhttps://nvd.nist.gov/vuln/detail/CVE-2011-1020" ],
  "name" : "CVE-2011-1020",
  "csaw" : false
}