spice — security advisory

{
  "id": "0a3b75542f518507b2224706a7325c2b473af999bde1a955803f71e74ad8df24",
  "url": "https://osv.dev/vulnerability/DEBIAN-CVE-2026-105959",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "DEBIAN-CVE-2026-105959",
    "summary": "A flaw was found in spice-server. The GLZ encoder dictionary restore path truncates a size_t allocation size to int when calling the malloc callback, allowing a malicious authenticated SPICE client during VM live migration to trigger a massive heap buffer overflow by sending a crafted max_encoders value in migration data.",
    "evidence": "osv:DEBIAN-CVE-2026-105959",
    "products": [
      {
        "name": {
          "value": "spice",
          "evidence": "/affected/0/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [],
        "affected_versions": [
          {
            "value": "0.15.1-1",
            "evidence": "/affected/0/versions"
          },
          {
            "value": "0.15.2-1",
            "evidence": "/affected/0/versions"
          },
          {
            "value": "0.16.0-1",
            "evidence": "/affected/0/versions"
          },
          {
            "value": "0.16.0-2",
            "evidence": "/affected/0/versions"
          },
          {
            "value": "0.16.0-3",
            "evidence": "/affected/0/versions"
          }
        ]
      },
      {
        "name": {
          "value": "spice",
          "evidence": "/affected/1/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [],
        "affected_versions": [
          {
            "value": "0.15.2-1",
            "evidence": "/affected/1/versions"
          },
          {
            "value": "0.16.0-1",
            "evidence": "/affected/1/versions"
          },
          {
            "value": "0.16.0-2",
            "evidence": "/affected/1/versions"
          },
          {
            "value": "0.16.0-3",
            "evidence": "/affected/1/versions"
          }
        ]
      },
      {
        "name": {
          "value": "spice",
          "evidence": "/affected/2/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [],
        "affected_versions": [
          {
            "value": "0.15.2-1",
            "evidence": "/affected/2/versions"
          },
          {
            "value": "0.16.0-1",
            "evidence": "/affected/2/versions"
          },
          {
            "value": "0.16.0-2",
            "evidence": "/affected/2/versions"
          },
          {
            "value": "0.16.0-3",
            "evidence": "/affected/2/versions"
          }
        ]
      }
    ],
    "severity": "high",
    "structured": {
      "id": "DEBIAN-CVE-2026-105959",
      "aliases": [
        "DEBIAN-CVE-2026-105959"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                }
              ]
            }
          ],
          "package": {
            "name": "spice",
            "purl": "pkg:deb/debian/spice?arch=source&distro=bookworm",
            "ecosystem": "Debian:12"
          },
          "versions": [
            "0.15.1-1",
            "0.15.2-1",
            "0.16.0-1",
            "0.16.0-2",
            "0.16.0-3"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-105959.json"
          },
          "ecosystem_specific": {
            "urgency": "not yet assigned"
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                }
              ]
            }
          ],
          "package": {
            "name": "spice",
            "purl": "pkg:deb/debian/spice?arch=source&distro=trixie",
            "ecosystem": "Debian:13"
          },
          "versions": [
            "0.15.2-1",
            "0.16.0-1",
            "0.16.0-2",
            "0.16.0-3"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-105959.json"
          },
          "ecosystem_specific": {
            "urgency": "not yet assigned"
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                }
              ]
            }
          ],
          "package": {
            "name": "spice",
            "purl": "pkg:deb/debian/spice?arch=source&distro=forky",
            "ecosystem": "Debian:14"
          },
          "versions": [
            "0.15.2-1",
            "0.16.0-1",
            "0.16.0-2",
            "0.16.0-3"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-105959.json"
          },
          "ecosystem_specific": {
            "urgency": "not yet assigned"
          }
        }
      ],
      "modified": "2026-10-17T13:09:27.937018545Z",
      "provider": "osv",
      "upstream": [
        "CVE-2026-105959"
      ],
      "references": [
        "https://security-tracker.debian.org/tracker/CVE-2026-105959"
      ]
    },
    "related_cves": [
      {
        "value": "CVE-2026-105959",
        "evidence": "/upstream"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 361818,
  "published_at": "2026-10-16T12:16:31.733+00:00"
}