ubuntu-cve-2022-0175
Vulnerability from osv_ubuntu
Published
2022-02-01 00:00
Modified
2026-04-22 07:41
Summary
Details

A flaw was found in the VirGL virtual OpenGL renderer (virglrenderer). The virgl did not properly initialize memory when allocating a host-backed memory resource. A malicious guest could use this flaw to mmap from the guest kernel and read this uninitialized memory from the host, possibly leading to information disclosure.

Severity
5.5 (Medium)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
N/A (UNKNOWN)
medium
References
To clipboard 

{
  "affected": [
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "libvirglrenderer0",
            "binary_version": "0.6.0-2"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:18.04:LTS",
        "name": "virglrenderer",
        "purl": "pkg:deb/ubuntu/virglrenderer@0.6.0-2?arch=source\u0026distro=bionic"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "0.6.0-1",
        "0.6.0-2"
      ]
    },
    {
      "ecosystem_specific": {
        "availability": "No subscription required",
        "binaries": [
          {
            "binary_name": "libvirglrenderer1",
            "binary_version": "0.8.2-1ubuntu1.1"
          },
          {
            "binary_name": "virgl-server",
            "binary_version": "0.8.2-1ubuntu1.1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:20.04:LTS",
        "name": "virglrenderer",
        "purl": "pkg:deb/ubuntu/virglrenderer@0.8.2-1ubuntu1.1?arch=source\u0026distro=focal"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "0.8.2-1ubuntu1.1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "0.7.0-2",
        "0.8.0-2",
        "0.8.1-6",
        "0.8.2-1",
        "0.8.2-1ubuntu1"
      ]
    },
    {
      "ecosystem_specific": {
        "availability": "No subscription required",
        "binaries": [
          {
            "binary_name": "libvirglrenderer1",
            "binary_version": "0.9.1-1~exp1ubuntu2"
          },
          {
            "binary_name": "virgl-server",
            "binary_version": "0.9.1-1~exp1ubuntu2"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:22.04:LTS",
        "name": "virglrenderer",
        "purl": "pkg:deb/ubuntu/virglrenderer@0.9.1-1~exp1ubuntu2?arch=source\u0026distro=jammy"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "0.9.1-1~exp1ubuntu2"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "0.8.2-5build1",
        "0.8.2-5ubuntu1",
        "0.9.1-1~exp1ubuntu1"
      ]
    }
  ],
  "aliases": [],
  "details": "A flaw was found in the VirGL virtual OpenGL renderer (virglrenderer). The virgl did not properly initialize memory when allocating a host-backed memory resource. A malicious guest could use this flaw to mmap from the guest kernel and read this uninitialized memory from the host, possibly leading to information disclosure.",
  "id": "UBUNTU-CVE-2022-0175",
  "modified": "2026-04-22T07:41:07Z",
  "published": "2022-02-01T00:00:00Z",
  "references": [
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2022-0175"
    },
    {
      "type": "REPORT",
      "url": "https://gitlab.freedesktop.org/virgl/virglrenderer/-/merge_requests/654"
    },
    {
      "type": "ADVISORY",
      "url": "https://ubuntu.com/security/notices/USN-5309-1"
    },
    {
      "type": "REPORT",
      "url": "https://www.cve.org/CVERecord?id=CVE-2022-0175"
    }
  ],
  "related": [
    "USN-5309-1"
  ],
  "schema_version": "1.7.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N",
      "type": "CVSS_V3"
    },
    {
      "score": "medium",
      "type": "Ubuntu"
    }
  ],
  "upstream": [
    "CVE-2022-0175"
  ]
}



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