{
  "threat_severity" : "Moderate",
  "public_date" : "2022-03-28T00:00:00Z",
  "bugzilla" : {
    "description" : "dnsmasq: Heap use after free in dhcp6_no_relay",
    "id" : "2057075",
    "url" : "https://bugzilla.redhat.com/show_bug.cgi?id=2057075"
  },
  "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-416",
  "details" : [ "A single-byte, non-arbitrary write/use-after-free flaw was found in dnsmasq. This flaw allows an attacker who sends a crafted packet processed by dnsmasq, potentially causing a denial of service.", "A single-byte, non-arbitrary write/use-after-free flaw was found in dnsmasq. This flaw allows an attacker who sends a crafted packet processed by dnsmasq, potentially causing a denial of service." ],
  "statement" : "The severity of this flaw was set to Moderate because this is a 1-byte out-of-bounds write/use-after-free issue where the attacker does not control the data written (it is predefined in a header file). The highest impact is only to availability.",
  "acknowledgement" : "This issue was discovered by Petr Menšík (Red Hat, Inc.) and Richard Johnson (Trellix Threat Labs).",
  "affected_release" : [ {
    "product_name" : "Red Hat Enterprise Linux 8",
    "release_date" : "2022-11-08T00:00:00Z",
    "advisory" : "RHSA-2022:7633",
    "cpe" : "cpe:/a:redhat:enterprise_linux:8",
    "package" : "dnsmasq-0:2.79-24.el8"
  }, {
    "product_name" : "Red Hat Enterprise Linux 8.6 Extended Update Support",
    "release_date" : "2024-03-27T00:00:00Z",
    "advisory" : "RHSA-2024:1545",
    "cpe" : "cpe:/a:redhat:rhel_eus:8.6",
    "package" : "dnsmasq-0:2.79-21.el8_6.5"
  }, {
    "product_name" : "Red Hat Enterprise Linux 9",
    "release_date" : "2022-11-15T00:00:00Z",
    "advisory" : "RHSA-2022:8070",
    "cpe" : "cpe:/a:redhat:enterprise_linux:9",
    "package" : "dnsmasq-0:2.85-5.el9"
  } ],
  "package_state" : [ {
    "product_name" : "Red Hat Enterprise Linux 6",
    "fix_state" : "Out of support scope",
    "package_name" : "dnsmasq",
    "cpe" : "cpe:/o:redhat:enterprise_linux:6"
  }, {
    "product_name" : "Red Hat Enterprise Linux 7",
    "fix_state" : "Out of support scope",
    "package_name" : "dnsmasq",
    "cpe" : "cpe:/o:redhat:enterprise_linux:7"
  }, {
    "product_name" : "Red Hat OpenStack Platform 13 (Queens)",
    "fix_state" : "Out of support scope",
    "package_name" : "dnsmasq",
    "cpe" : "cpe:/a:redhat:openstack:13"
  } ],
  "references" : [ "https://www.cve.org/CVERecord?id=CVE-2022-0934\nhttps://nvd.nist.gov/vuln/detail/CVE-2022-0934\nhttps://lists.thekelleys.org.uk/pipermail/dnsmasq-discuss/2022q1/016272.html" ],
  "name" : "CVE-2022-0934",
  "csaw" : false
}