usn-7336-1
Vulnerability from osv_ubuntu
Published
2025-03-06 20:58
Modified
2026-02-10 04:47
Summary
gnuchess vulnerability
Details

Michael Vaughan discovered an overflow vulnerability in GNU Chess that occurs when reading a specially crafted Portable Game Notation (PGN) file. An attacker could possibly use this issue to cause GNU Chess to crash, resulting in a denial of service, or the execution of arbitrary code.

References
To clipboard 

{
  "affected": [
    {
      "database_specific": {
        "cves_map": {
          "cves": [
            {
              "id": "CVE-2021-30184",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            }
          ],
          "ecosystem": "Ubuntu:22.04:LTS"
        }
      },
      "ecosystem_specific": {
        "availability": "No subscription required",
        "binaries": [
          {
            "binary_name": "gnuchess",
            "binary_version": "6.2.7-1+deb11u1build0.22.04.1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:22.04:LTS",
        "name": "gnuchess",
        "purl": "pkg:deb/ubuntu/gnuchess@6.2.7-1+deb11u1build0.22.04.1?arch=source\u0026distro=jammy"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "6.2.7-1+deb11u1build0.22.04.1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "6.2.7-1"
      ]
    },
    {
      "database_specific": {
        "cves_map": {
          "cves": [
            {
              "id": "CVE-2021-30184",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            }
          ],
          "ecosystem": "Ubuntu:24.04:LTS"
        }
      },
      "ecosystem_specific": {
        "availability": "No subscription required",
        "binaries": [
          {
            "binary_name": "gnuchess",
            "binary_version": "6.2.7-1+deb11u1build0.24.04.1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:24.04:LTS",
        "name": "gnuchess",
        "purl": "pkg:deb/ubuntu/gnuchess@6.2.7-1+deb11u1build0.24.04.1?arch=source\u0026distro=noble"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "6.2.7-1+deb11u1build0.24.04.1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "6.2.7-1",
        "6.2.7-1build1"
      ]
    }
  ],
  "aliases": [],
  "details": "Michael Vaughan discovered an overflow vulnerability in GNU Chess that\noccurs when reading a specially crafted Portable Game Notation (PGN)\nfile. An attacker could possibly use this issue to cause GNU Chess to\ncrash, resulting in a denial of service, or the execution of arbitrary\ncode.\n",
  "id": "USN-7336-1",
  "modified": "2026-02-10T04:47:18Z",
  "published": "2025-03-06T20:58:10Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://ubuntu.com/security/notices/USN-7336-1"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2021-30184"
    }
  ],
  "related": [],
  "schema_version": "1.7.0",
  "summary": "gnuchess vulnerability",
  "upstream": [
    "UBUNTU-CVE-2021-30184"
  ]
}



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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

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Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


Detection rules are retrieved from Rulezet.