{
  "threat_severity" : "Important",
  "public_date" : "2024-01-29T00:00:00Z",
  "bugzilla" : {
    "description" : "bind: bind9: DNS-over-HTTPS implementation suffers from multiple issues under heavy query load",
    "id" : "2342880",
    "url" : "https://bugzilla.redhat.com/show_bug.cgi?id=2342880"
  },
  "cvss3" : {
    "cvss3_base_score" : "7.5",
    "cvss3_scoring_vector" : "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
    "status" : "verified"
  },
  "cwe" : "CWE-400",
  "details" : [ "Clients using DNS-over-HTTPS (DoH) can exhaust a DNS resolver's CPU and/or memory by flooding it with crafted valid or invalid HTTP/2 traffic.\nThis issue affects BIND 9 versions 9.18.0 through 9.18.32, 9.20.0 through 9.20.4, 9.21.0 through 9.21.3, and 9.18.11-S1 through 9.18.32-S1.", "A flaw was found in BIND 9. By flooding a target resolver with HTTP/2 traffic and exploiting this flaw, an attacker could overwhelm the server, causing high CPU and/or memory usage and preventing other clients from establishing DoH connections. This issue could significantly impair the resolver's performance and effectively deny legitimate clients access to the DNS resolution service." ],
  "statement" : "The bind package shipped by Red Hat by default does not enable DNS-over-HTTPS functionality.\nThe bind-9.11 version used in Red Hat Enterprise Linux 7 and 8 does not have any DNS-over-HTTP/HTTPS/TLS implementation and is therefore not affected.\nThe bind-9.16 version used in Red Hat Enterprise Linux 8 and 9 does not have any DNS-over-HTTP/HTTPS/TLS implementation and is therefore not affected by this vulnerability.",
  "acknowledgement" : "Red Hat would like to thank Jean-François Billaud for reporting this issue.",
  "affected_release" : [ {
    "product_name" : "Red Hat Enterprise Linux 9",
    "release_date" : "2025-02-19T00:00:00Z",
    "advisory" : "RHSA-2025:1670",
    "cpe" : "cpe:/a:redhat:enterprise_linux:9",
    "package" : "bind9.18-32:9.18.29-1.el9_5.1"
  }, {
    "product_name" : "Red Hat OpenShift Container Platform 4.16",
    "release_date" : "2025-03-05T00:00:00Z",
    "advisory" : "RHSA-2025:1907",
    "cpe" : "cpe:/a:redhat:openshift:4.16::el9",
    "package" : "rhcos-416.94.202502260030-0"
  } ],
  "package_state" : [ {
    "product_name" : "Red Hat Enterprise Linux 10",
    "fix_state" : "Affected",
    "package_name" : "bind",
    "cpe" : "cpe:/o:redhat:enterprise_linux:10"
  }, {
    "product_name" : "Red Hat Enterprise Linux 6",
    "fix_state" : "Not affected",
    "package_name" : "bind",
    "cpe" : "cpe:/o:redhat:enterprise_linux:6"
  }, {
    "product_name" : "Red Hat Enterprise Linux 7",
    "fix_state" : "Not affected",
    "package_name" : "bind",
    "cpe" : "cpe:/o:redhat:enterprise_linux:7"
  }, {
    "product_name" : "Red Hat Enterprise Linux 8",
    "fix_state" : "Not affected",
    "package_name" : "bind",
    "cpe" : "cpe:/o:redhat:enterprise_linux:8"
  }, {
    "product_name" : "Red Hat Enterprise Linux 8",
    "fix_state" : "Not affected",
    "package_name" : "bind9.16",
    "cpe" : "cpe:/o:redhat:enterprise_linux:8"
  }, {
    "product_name" : "Red Hat Enterprise Linux 9",
    "fix_state" : "Not affected",
    "package_name" : "bind",
    "cpe" : "cpe:/o:redhat:enterprise_linux:9"
  }, {
    "product_name" : "Red Hat Enterprise Linux 9",
    "fix_state" : "Not affected",
    "package_name" : "dhcp",
    "cpe" : "cpe:/o:redhat:enterprise_linux:9"
  } ],
  "references" : [ "https://www.cve.org/CVERecord?id=CVE-2024-12705\nhttps://nvd.nist.gov/vuln/detail/CVE-2024-12705\nhttps://kb.isc.org/docs/cve-2024-12705" ],
  "name" : "CVE-2024-12705",
  "mitigation" : {
    "value" : "If the feature is not needed, disable DNS-over-HTTPS (DoH) in your bind config. Otherwise, we recommend upgrading to a patched version of bind.",
    "lang" : "en:us"
  },
  "csaw" : false
}