{
  "threat_severity" : "Low",
  "public_date" : "2022-03-17T00:00:00Z",
  "bugzilla" : {
    "description" : "libvirt: missing locking in nwfilterConnectNumOfNWFilters can lead to denial of service",
    "id" : "2063883",
    "url" : "https://bugzilla.redhat.com/show_bug.cgi?id=2063883"
  },
  "cvss3" : {
    "cvss3_base_score" : "5.0",
    "cvss3_scoring_vector" : "CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:N/I:N/A:H",
    "status" : "verified"
  },
  "cwe" : "CWE-667",
  "details" : [ "A flaw was found in the libvirt nwfilter driver. The virNWFilterObjListNumOfNWFilters method failed to acquire the driver->nwfilters mutex before iterating over virNWFilterObj instances. There was no protection to stop another thread from concurrently modifying the driver->nwfilters object. This flaw allows a malicious, unprivileged user to exploit this issue via libvirt's API virConnectNumOfNWFilters to crash the network filter management daemon (libvirtd/virtnwfilterd).", "A flaw was found in the libvirt nwfilter driver. The virNWFilterObjListNumOfNWFilters method failed to acquire the driver->nwfilters mutex before iterating over virNWFilterObj instances. There was no protection to stop another thread from concurrently modifying the driver->nwfilters object. This flaw allows a malicious, unprivileged user to exploit this issue via libvirt's API virConnectNumOfNWFilters to crash the network filter management daemon (libvirtd/virtnwfilterd)." ],
  "statement" : "A future update may address this issue in Red Hat Enterprise Linux 8 and RHEL Advanced Virtualization.",
  "acknowledgement" : "This issue was discovered by Daniel Berrangé (Red Hat).",
  "affected_release" : [ {
    "product_name" : "Red Hat Enterprise Linux 8",
    "release_date" : "2022-11-08T00:00:00Z",
    "advisory" : "RHSA-2022:7472",
    "cpe" : "cpe:/a:redhat:enterprise_linux:8",
    "package" : "virt-devel:rhel-8070020220921004438.3b9f49c4"
  }, {
    "product_name" : "Red Hat Enterprise Linux 8",
    "release_date" : "2022-11-08T00:00:00Z",
    "advisory" : "RHSA-2022:7472",
    "cpe" : "cpe:/a:redhat:enterprise_linux:8",
    "package" : "virt:rhel-8070020220921004438.3b9f49c4"
  }, {
    "product_name" : "Red Hat Enterprise Linux 9",
    "release_date" : "2022-11-15T00:00:00Z",
    "advisory" : "RHSA-2022:8003",
    "cpe" : "cpe:/a:redhat:enterprise_linux:9",
    "package" : "libvirt-0:8.5.0-7.el9_1"
  } ],
  "package_state" : [ {
    "product_name" : "Red Hat Enterprise Linux 6",
    "fix_state" : "Out of support scope",
    "package_name" : "libvirt",
    "cpe" : "cpe:/o:redhat:enterprise_linux:6"
  }, {
    "product_name" : "Red Hat Enterprise Linux 7",
    "fix_state" : "Out of support scope",
    "package_name" : "libvirt",
    "cpe" : "cpe:/o:redhat:enterprise_linux:7"
  }, {
    "product_name" : "Red Hat Enterprise Linux 8 Advanced Virtualization",
    "fix_state" : "Fix deferred",
    "package_name" : "virt:8.2/libvirt",
    "cpe" : "cpe:/a:redhat:advanced_virtualization:8::el8"
  }, {
    "product_name" : "Red Hat Enterprise Linux 8 Advanced Virtualization",
    "fix_state" : "Fix deferred",
    "package_name" : "virt:av/libvirt",
    "cpe" : "cpe:/a:redhat:advanced_virtualization:8::el8"
  } ],
  "references" : [ "https://www.cve.org/CVERecord?id=CVE-2022-0897\nhttps://nvd.nist.gov/vuln/detail/CVE-2022-0897" ],
  "name" : "CVE-2022-0897",
  "csaw" : false
}