{
  "id": "openEuler-SA-2022-1891",
  "url": "https://www.openeuler.org/zh/security/security-bulletins/detail/?id=openEuler-SA-2022-1891",
  "title": "An update for libvirt is now available for openEuler-20.03-LTS-SP1,openEuler-20.03-LTS-SP3 and openEuler-22.03-LTS",
  "severity": "Medium",
  "description": "Libvirt is a C toolkit to interact with the virtualization capabilities of recent versions of Linux (and other OSes). The main package includes the libvirtd server exporting the virtualization support.\r\n\r\nSecurity Fix(es):\r\n\r\nA use-after-free flaw was found in libvirt. The qemuMonitorUnregister() function in qemuProcessHandleMonitorEOF is called using multiple threads without being adequately protected by a monitor lock. This flaw could be triggered by the virConnectGetAllDomainStats API when the guest is shutting down. An unprivileged client with a read-only connection could use this flaw to perform a denial of service attack by causing the libvirt daemon to crash.(CVE-2021-3975)",
  "cves": [
    {
      "id": "CVE-2021-3975",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2021-3975",
      "severity": "Medium"
    }
  ]
}