USN-8723-1 (UBUNTU-CVE-2026-57965)

Vulnerability from osv_ubuntu – Published: 2026-09-03 12:43 – Updated: 2026-09-03 12:43 – Source website
VLAI
Summary
spice-vdagent vulnerabilities
Details

It was discovered that SPICE vdagent had an integer overflow in the buffer size calculation used when writing to the daemon socket. A malicious or compromised SPICE host could possibly use this issue to cause SPICE vdagent to crash, resulting in a denial of service. (CVE-2026-57965)

It was discovered that SPICE vdagent did not properly sanitize filenames provided by the SPICE host during file transfers. A malicious or compromised SPICE host could possibly use this issue to write arbitrary files to any location on the guest operating system with the privileges of the spice-vdagent process. (CVE-2026-57966)

References
To clipboard 

{
  "affected": [
    {
      "database_specific": {
        "cves_map": {
          "cves": [
            {
              "id": "CVE-2026-57965",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:L/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2026-57966",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:N",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            }
          ],
          "ecosystem": "Ubuntu:22.04:LTS"
        }
      },
      "ecosystem_specific": {
        "availability": "No subscription required",
        "binaries": [
          {
            "binary_name": "spice-vdagent",
            "binary_version": "0.22.1-1ubuntu0.1"
          }
        ]
      },
      "package": {
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        "name": "spice-vdagent",
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      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "0.22.1-1ubuntu0.1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "0.20.0-2build1",
        "0.20.0-3",
        "0.22.1-1"
      ]
    },
    {
      "database_specific": {
        "cves_map": {
          "cves": [
            {
              "id": "CVE-2026-57965",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:L/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2026-57966",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:N",
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          "ecosystem": "Ubuntu:24.04:LTS"
        }
      },
      "ecosystem_specific": {
        "availability": "No subscription required",
        "binaries": [
          {
            "binary_name": "spice-vdagent",
            "binary_version": "0.22.1-4ubuntu0.1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:24.04:LTS",
        "name": "spice-vdagent",
        "purl": "pkg:deb/ubuntu/spice-vdagent@0.22.1-4ubuntu0.1?arch=source\u0026distro=noble"
      },
      "ranges": [
        {
          "events": [
            {
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            },
            {
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            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "0.22.1-3",
        "0.22.1-4",
        "0.22.1-4build1",
        "0.22.1-4build2",
        "0.22.1-4build3"
      ]
    },
    {
      "database_specific": {
        "cves_map": {
          "cves": [
            {
              "id": "CVE-2026-57965",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:L/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2026-57966",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:N",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            }
          ],
          "ecosystem": "Ubuntu:26.04:LTS"
        }
      },
      "ecosystem_specific": {
        "availability": "No subscription required",
        "binaries": [
          {
            "binary_name": "spice-vdagent",
            "binary_version": "0.23.0-1ubuntu0.1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:26.04:LTS",
        "name": "spice-vdagent",
        "purl": "pkg:deb/ubuntu/spice-vdagent@0.23.0-1ubuntu0.1?arch=source\u0026distro=resolute"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "0.23.0-1ubuntu0.1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "0.22.1-5",
        "0.23.0-1"
      ]
    }
  ],
  "aliases": [],
  "details": "It was discovered that SPICE vdagent had an integer overflow in the buffer\nsize calculation used when writing to the daemon socket. A malicious or\ncompromised SPICE host could possibly use this issue to cause SPICE vdagent\nto crash, resulting in a denial of service. (CVE-2026-57965)\n\nIt was discovered that SPICE vdagent did not properly sanitize filenames\nprovided by the SPICE host during file transfers. A malicious or\ncompromised SPICE host could possibly use this issue to write arbitrary\nfiles to any location on the guest operating system with the privileges of\nthe spice-vdagent process. (CVE-2026-57966)",
  "id": "USN-8723-1",
  "modified": "2026-09-03T12:43:08Z",
  "published": "2026-09-03T12:43:08Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://ubuntu.com/security/notices/USN-8723-1"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2026-57965"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2026-57966"
    }
  ],
  "related": [],
  "schema_version": "1.7.0",
  "summary": "spice-vdagent vulnerabilities",
  "upstream": [
    "UBUNTU-CVE-2026-57965",
    "UBUNTU-CVE-2026-57966"
  ]
}



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