Use-of-uninitialized-value in grk::N_SCALAR::DecompressIrrev::vtrans

{
  "id": "5b742ae24db070a0a7e65f48a94934e1d9c53d0895acbbb1b3b3b6f526e18571",
  "url": "https://osv.dev/vulnerability/OSV-2022-336",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "Use-of-uninitialized-value in grk::N_SCALAR::DecompressIrrev::vtrans",
    "summary": "OSS-Fuzz report: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=46594 Crash type: Use-of-uninitialized-value Crash state: grk::N_SCALAR::DecompressIrrev::vtrans unsigned long grk::N_SCALAR::vscheduler std::__1::__function::__func",
    "evidence": "osv:OSV-2022-336",
    "products": [
      {
        "name": {
          "value": "grok",
          "evidence": "/affected/0/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [],
        "affected_versions": [
          {
            "value": "v9.7.5.debian",
            "evidence": "/affected/0/versions"
          },
          {
            "value": "v9.7.6",
            "evidence": "/affected/0/versions"
          },
          {
            "value": "v9.7.7",
            "evidence": "/affected/0/versions"
          },
          {
            "value": "v9.7.8",
            "evidence": "/affected/0/versions"
          },
          {
            "value": "v10.0.0",
            "evidence": "/affected/0/versions"
          },
          {
            "value": "v10.0.0.debian",
            "evidence": "/affected/0/versions"
          },
          {
            "value": "v10.0.1",
            "evidence": "/affected/0/versions"
          },
          {
            "value": "v10.0.2",
            "evidence": "/affected/0/versions"
          },
          {
            "value": "v10.0.3",
            "evidence": "/affected/0/versions"
          },
          {
            "value": "v10.0.4",
            "evidence": "/affected/0/versions"
          },
          {
            "value": "v10.0.5",
            "evidence": "/affected/0/versions"
          },
          {
            "value": "v10.0.5.debian",
            "evidence": "/affected/0/versions"
          },
          {
            "value": "v10.0.6",
            "evidence": "/affected/0/versions"
          },
          {
            "value": "v10.0.7",
            "evidence": "/affected/0/versions"
          },
          {
            "value": "v10.0.8",
            "evidence": "/affected/0/versions"
          }
        ]
      }
    ],
    "severity": "unknown",
    "structured": {
      "id": "OSV-2022-336",
      "aliases": [
        "OSV-2022-336"
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/GrokImageCompression/grok.git",
              "type": "GIT",
              "events": [
                {
                  "introduced": "6b45934c6d0682de97d8e9652da85213648f9df8"
                }
              ]
            }
          ],
          "package": {
            "name": "grok",
            "purl": "pkg:generic/grok",
            "ecosystem": "OSS-Fuzz"
          },
          "versions": [
            "v9.7.5.debian",
            "v9.7.6",
            "v9.7.7",
            "v9.7.8",
            "v10.0.0",
            "v10.0.0.debian",
            "v10.0.1",
            "v10.0.2",
            "v10.0.3",
            "v10.0.4",
            "v10.0.5",
            "v10.0.5.debian",
            "v10.0.6",
            "v10.0.7",
            "v10.0.8"
          ],
          "database_specific": {
            "source": "https://github.com/google/oss-fuzz-vulns/blob/main/vulns/grok/OSV-2022-336.yaml"
          },
          "ecosystem_specific": {
            "severity": "MEDIUM"
          }
        }
      ],
      "modified": "2026-10-19T14:30:19.309690Z",
      "provider": "osv",
      "references": [
        "https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=46594"
      ]
    },
    "related_cves": [],
    "security_relevant": true,
    "severity_evidence": null
  },
  "source_id": "core-osv",
  "document_id": 374949,
  "published_at": "2022-04-12T00:00:32.150063+00:00"
}