{
  "fix": "qemu-system 1:6.2\u002Bdfsg-2ubuntu5",
  "url": "https://patchblox.com/security/fix/linux/ubuntu-jammy-qemu-system-1-6.2-dfsg-2ubuntu5",
  "summary": "qemu-system 1:6.2\u002Bdfsg-2ubuntu5, released February 18, 2022, fixes 11 CVEs in qemu-system. None of them is reported as exploited. Patch Radar priority: High.",
  "platform": "linux",
  "type": "package",
  "title": "qemu-system 1:6.2\u002Bdfsg-2ubuntu5 for Ubuntu 22.04.1 LTS (jammy)",
  "released": "2022-02-18T10:15:00Z",
  "priority": "High",
  "priorityTier": 3,
  "priorityReason": "Closes CVE-2021-3682, high severity",
  "supported": true,
  "cveCount": 11,
  "exploitedCveCount": 0,
  "kevCveCount": 0,
  "ransomwareCveCount": 0,
  "maxEpss": 0.0288,
  "maxCvss": 8.8,
  "appliesTo": [
    {
      "product": "qemu-system",
      "productUrl": "https://patchblox.com/security/product/linux/qemu-system",
      "release": "Ubuntu 22.04.1 LTS (jammy)",
      "fixedVersion": "1:6.2\u002Bdfsg-2ubuntu5",
      "supported": true
    }
  ],
  "cves": [
    {
      "cveId": "CVE-2021-3682",
      "url": "https://patchblox.com/security/cve/CVE-2021-3682",
      "title": "hivex: usbredir: fix free call (Gerd Hoffmann) [Orabug: 33198441]",
      "priority": "High",
      "severity": "IMPORTANT",
      "cvss": 8.5,
      "epss": 0.0288,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2021-3713",
      "url": "https://patchblox.com/security/cve/CVE-2021-3713",
      "title": "hivex: uas: add stream number sanity checks (Gerd Hoffmann) [Orabug: 33280793]",
      "priority": "High",
      "severity": "IMPORTANT",
      "cvss": 7.4,
      "epss": 0.00546,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2021-3748",
      "url": "https://patchblox.com/security/cve/CVE-2021-3748",
      "title": "hivex: QEMU: virtio-net: heap use-after-free in virtio_net_receive_rcu",
      "priority": "High",
      "severity": "Moderate",
      "cvss": 8.8,
      "epss": 0.00522,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2021-20196",
      "url": "https://patchblox.com/security/cve/CVE-2021-20196",
      "title": "qemu-block-extra: A NULL pointer dereference flaw was found in the floppy disk emulator ofQEMU",
      "priority": "High",
      "severity": "Low",
      "cvss": 7.8,
      "epss": 0.00479,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2021-3546",
      "url": "https://patchblox.com/security/cve/CVE-2021-3546",
      "title": "hivex: vhost-user-gpu: abstract vg_cleanup_mapping_iov (Li Qiang) [Orabug: 32950716]",
      "priority": "High",
      "severity": "IMPORTANT",
      "cvss": 8.2,
      "epss": 0.00463,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2021-4158",
      "url": "https://patchblox.com/security/cve/CVE-2021-4158",
      "title": "hivex-devel: QEMU: NULL pointer dereference in pci_write() in hw/acpi/pcihp.c",
      "priority": "High",
      "severity": "Moderate",
      "cvss": 7.8,
      "epss": 0.00399,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2021-20203",
      "url": "https://patchblox.com/security/cve/CVE-2021-20203",
      "title": "qemu-block-extra: An integer overflow issue was found in the vmxnet3 NIC emulator of the QEMUfor versions up to v5.2.0",
      "priority": "Routine",
      "severity": "Low",
      "cvss": 3.2,
      "epss": 0.00592,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2021-3544",
      "url": "https://patchblox.com/security/cve/CVE-2021-3544",
      "title": "hivex: vhost-user-gpu: reorder free calls (Gerd Hoffmann) [Orabug: 32950701]",
      "priority": "Routine",
      "severity": "IMPORTANT",
      "cvss": 6.5,
      "epss": 0.00436,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2021-3545",
      "url": "https://patchblox.com/security/cve/CVE-2021-3545",
      "title": "hivex: vhost-user-gpu: fix memory disclosure in virgl_cmd_get_capset_info (Li Qiang) [Orabug: 32950708]",
      "priority": "Routine",
      "severity": "IMPORTANT",
      "cvss": 6.5,
      "epss": 0.00421,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2021-3930",
      "url": "https://patchblox.com/security/cve/CVE-2021-3930",
      "title": "qemu-kvm-block-gluster: QEMU: off-by-one error in mode_sense_page() in hw/scsi/scsi-disk.c",
      "priority": "Routine",
      "severity": "Low",
      "cvss": 6.5,
      "epss": 0.00338,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2021-3947",
      "url": "https://patchblox.com/security/cve/CVE-2021-3947",
      "title": "hivex: Document CVE-2021-4158 and as fixed (Mark Kanda) [Orabug: 33719302] [Orabug: 33754145] {CVE-2021-4158}",
      "priority": "Routine",
      "severity": "IMPORTANT",
      "cvss": 5.5,
      "epss": 0.00317,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    }
  ],
  "dataAsOf": "2026-11-13T14:02:24Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
    "url": "https://patchblox.com/security/patch-radar",
    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
  }
}