{
  "threat_severity" : "Moderate",
  "public_date" : "2020-07-10T00:00:00Z",
  "bugzilla" : {
    "description" : "webkitgtk: Improper access management to CLONE_NEWUSER and the TIOCSTI ioctl",
    "id" : "1879570",
    "url" : "https://bugzilla.redhat.com/show_bug.cgi?id=1879570"
  },
  "cvss3" : {
    "cvss3_base_score" : "10.0",
    "cvss3_scoring_vector" : "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H",
    "status" : "verified"
  },
  "cwe" : "CWE-284->CWE-77",
  "details" : [ "The bubblewrap sandbox of WebKitGTK and WPE WebKit, prior to 2.28.3, failed to properly block access to CLONE_NEWUSER and the TIOCSTI ioctl. CLONE_NEWUSER could potentially be used to confuse xdg-desktop-portal, which allows access outside the sandbox. TIOCSTI can be used to directly execute commands outside the sandbox by writing to the controlling terminal's input buffer, similar to CVE-2017-5226.", "A flaw was found in webkitgtk in versions prior to 2.28.3 and in WPE WebKit in versions prior to 2.28.3. The bubblewrap sandbox failed to properly block access to CLONE_NEWUSER and the TIOCSTI ioctl. CLONE_NEWUSER could potentially be used to confuse xdg- desktop-portal, which allows access outside the sandbox. TIOCSTI can be used to directly execute commands outside the sandbox by writing to the controlling terminal’s input buffer, similar to CVE-2017-5226. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability." ],
  "affected_release" : [ {
    "product_name" : "Red Hat Enterprise Linux 7 Extended Lifecycle Support",
    "release_date" : "2025-07-07T00:00:00Z",
    "advisory" : "RHSA-2025:10364",
    "cpe" : "cpe:/o:redhat:rhel_els:7",
    "package" : "webkitgtk4-0:2.48.3-2.el7_9"
  } ],
  "package_state" : [ {
    "product_name" : "Red Hat Enterprise Linux 6",
    "fix_state" : "Not affected",
    "package_name" : "webkitgtk",
    "cpe" : "cpe:/o:redhat:enterprise_linux:6"
  }, {
    "product_name" : "Red Hat Enterprise Linux 7",
    "fix_state" : "Not affected",
    "package_name" : "webkitgtk3",
    "cpe" : "cpe:/o:redhat:enterprise_linux:7"
  }, {
    "product_name" : "Red Hat Enterprise Linux 8",
    "fix_state" : "Not affected",
    "package_name" : "webkit2gtk3",
    "cpe" : "cpe:/o:redhat:enterprise_linux:8"
  } ],
  "references" : [ "https://www.cve.org/CVERecord?id=CVE-2020-13753\nhttps://nvd.nist.gov/vuln/detail/CVE-2020-13753\nhttps://webkitgtk.org/security/WSA-2020-0006.html" ],
  "name" : "CVE-2020-13753",
  "csaw" : false
}