{
  "threat_severity" : "Important",
  "public_date" : "2023-10-25T00:00:00Z",
  "bugzilla" : {
    "description" : "xorg-x11-server: Use-after-free bug in DamageDestroy",
    "id" : "2244735",
    "url" : "https://bugzilla.redhat.com/show_bug.cgi?id=2244735"
  },
  "cvss3" : {
    "cvss3_base_score" : "7.0",
    "cvss3_scoring_vector" : "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H",
    "status" : "verified"
  },
  "cwe" : "CWE-416",
  "details" : [ "A use-after-free flaw was found in xorg-x11-server-Xvfb. This issue occurs in Xvfb with a very specific and legacy configuration (a multi-screen setup with multiple protocol screens, also known as Zaphod mode). If the pointer is warped from a screen 1 to a screen 0, a use-after-free issue may be triggered during shutdown or reset of the Xvfb server, allowing for possible escalation of privileges or denial of service.", "A use-after-free flaw was found in xorg-x11-server-Xvfb. This issue occurs in Xvfb with a very specific and legacy configuration (a multi-screen setup with multiple protocol screens, also known as Zaphod mode). If the pointer is warped from a screen 1 to a screen 0, a use-after-free issue may be triggered during shutdown or reset of the Xvfb server, allowing for possible escalation of privileges or denial of service." ],
  "statement" : "Xvfb does not run with root privileges in Red Hat Enterprise Linux 7, 8, and 9, therefore, Red Hat Enterprise Linux 7, 8, and 9 have been rated with a moderate severity.\nThe xorg-x11-server-Xwayland package as shipped by Red Hat Enterprise Linux 8 and 9 is not affected by this issue as Xwayland does not support multiple protocol screens and is not affected by this vulnerability.",
  "affected_release" : [ {
    "product_name" : "Red Hat Enterprise Linux 9",
    "release_date" : "2024-04-30T00:00:00Z",
    "advisory" : "RHSA-2024:2298",
    "cpe" : "cpe:/a:redhat:enterprise_linux:9",
    "package" : "tigervnc-0:1.13.1-8.el9"
  } ],
  "package_state" : [ {
    "product_name" : "Red Hat Enterprise Linux 6",
    "fix_state" : "Not affected",
    "package_name" : "tigervnc",
    "cpe" : "cpe:/o:redhat:enterprise_linux:6"
  }, {
    "product_name" : "Red Hat Enterprise Linux 6",
    "fix_state" : "Out of support scope",
    "package_name" : "xorg-x11-server",
    "cpe" : "cpe:/o:redhat:enterprise_linux:6"
  }, {
    "product_name" : "Red Hat Enterprise Linux 7",
    "fix_state" : "Not affected",
    "package_name" : "tigervnc",
    "cpe" : "cpe:/o:redhat:enterprise_linux:7"
  }, {
    "product_name" : "Red Hat Enterprise Linux 7",
    "fix_state" : "Will not fix",
    "package_name" : "xorg-x11-server",
    "cpe" : "cpe:/o:redhat:enterprise_linux:7",
    "impact" : "moderate"
  }, {
    "product_name" : "Red Hat Enterprise Linux 8",
    "fix_state" : "Not affected",
    "package_name" : "tigervnc",
    "cpe" : "cpe:/o:redhat:enterprise_linux:8"
  }, {
    "product_name" : "Red Hat Enterprise Linux 8",
    "fix_state" : "Will not fix",
    "package_name" : "xorg-x11-server",
    "cpe" : "cpe:/o:redhat:enterprise_linux:8",
    "impact" : "moderate"
  }, {
    "product_name" : "Red Hat Enterprise Linux 8",
    "fix_state" : "Not affected",
    "package_name" : "xorg-x11-server-Xwayland",
    "cpe" : "cpe:/o:redhat:enterprise_linux:8",
    "impact" : "moderate"
  }, {
    "product_name" : "Red Hat Enterprise Linux 9",
    "fix_state" : "Will not fix",
    "package_name" : "xorg-x11-server",
    "cpe" : "cpe:/o:redhat:enterprise_linux:9",
    "impact" : "moderate"
  }, {
    "product_name" : "Red Hat Enterprise Linux 9",
    "fix_state" : "Not affected",
    "package_name" : "xorg-x11-server-Xwayland",
    "cpe" : "cpe:/o:redhat:enterprise_linux:9",
    "impact" : "moderate"
  } ],
  "references" : [ "https://www.cve.org/CVERecord?id=CVE-2023-5574\nhttps://nvd.nist.gov/vuln/detail/CVE-2023-5574\nhttps://lists.x.org/archives/xorg-announce/2023-October/003430.html" ],
  "name" : "CVE-2023-5574",
  "mitigation" : {
    "value" : "Starting Xvfb with the -noreset command line option limits the use-after-free from being triggered only at the Xvfb server shutdown. Also, do not start Xvfb as root.",
    "lang" : "en:us"
  },
  "csaw" : false
}