GCVE Workshop - 22 September 2026 (14:00-18:00), Luxembourg Before The Vulnopticon Conference - Registration

CVE-2020-25125 (GCVE-0-2020-25125)

Vulnerability from cvelistv5 – Published: 2020-09-03 17:48 – Updated: 2024-08-04 15:26
VLAI
Summary
GnuPG 2.2.21 and 2.2.22 (and Gpg4win 3.1.12) has an array overflow, leading to a crash or possibly unspecified other impact, when a victim imports an attacker's OpenPGP key, and this key has AEAD preferences. The overflow is caused by a g10/key-check.c error. NOTE: GnuPG 2.3.x is unaffected. GnuPG 2.2.23 is a fixed version.
Severity
7.8 (High)
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
CWE
  • n/a
Assigner
References
Show details on NVD website
To clipboard 

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-04T15:26:09.468Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://bugzilla.opensuse.org/show_bug.cgi?id=1176034"
          },
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://dev.gnupg.org/rG8ec9573e57866dda5efb4677d4454161517484bc"
          },
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://lists.gnupg.org/pipermail/gnupg-announce/2020q3/000448.html"
          },
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://dev.gnupg.org/T5050"
          },
          {
            "name": "[oss-security] 20200903 GNUPG released with AEAD sec fix CVE-2020-25125",
            "tags": [
              "mailing-list",
              "x_refsource_MLIST",
              "x_transferred"
            ],
            "url": "http://www.openwall.com/lists/oss-security/2020/09/03/4"
          },
          {
            "name": "[oss-security] 20200903 CVE-2020-25125: gnupg2: buffer overflow when importing a key with AEAD preferences",
            "tags": [
              "mailing-list",
              "x_refsource_MLIST",
              "x_transferred"
            ],
            "url": "http://www.openwall.com/lists/oss-security/2020/09/03/5"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "n/a",
          "vendor": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "GnuPG 2.2.21 and 2.2.22 (and Gpg4win 3.1.12) has an array overflow, leading to a crash or possibly unspecified other impact, when a victim imports an attacker\u0027s OpenPGP key, and this key has AEAD preferences. The overflow is caused by a g10/key-check.c error. NOTE: GnuPG 2.3.x is unaffected. GnuPG 2.2.23 is a fixed version."
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "description": "n/a",
              "lang": "en",
              "type": "text"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2020-09-03T20:06:17.000Z",
        "orgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
        "shortName": "mitre"
      },
      "references": [
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://bugzilla.opensuse.org/show_bug.cgi?id=1176034"
        },
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://dev.gnupg.org/rG8ec9573e57866dda5efb4677d4454161517484bc"
        },
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://lists.gnupg.org/pipermail/gnupg-announce/2020q3/000448.html"
        },
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://dev.gnupg.org/T5050"
        },
        {
          "name": "[oss-security] 20200903 GNUPG released with AEAD sec fix CVE-2020-25125",
          "tags": [
            "mailing-list",
            "x_refsource_MLIST"
          ],
          "url": "http://www.openwall.com/lists/oss-security/2020/09/03/4"
        },
        {
          "name": "[oss-security] 20200903 CVE-2020-25125: gnupg2: buffer overflow when importing a key with AEAD preferences",
          "tags": [
            "mailing-list",
            "x_refsource_MLIST"
          ],
          "url": "http://www.openwall.com/lists/oss-security/2020/09/03/5"
        }
      ],
      "x_legacyV4Record": {
        "CVE_data_meta": {
          "ASSIGNER": "cve@mitre.org",
          "ID": "CVE-2020-25125",
          "STATE": "PUBLIC"
        },
        "affects": {
          "vendor": {
            "vendor_data": [
              {
                "product": {
                  "product_data": [
                    {
                      "product_name": "n/a",
                      "version": {
                        "version_data": [
                          {
                            "version_value": "n/a"
                          }
                        ]
                      }
                    }
                  ]
                },
                "vendor_name": "n/a"
              }
            ]
          }
        },
        "data_format": "MITRE",
        "data_type": "CVE",
        "data_version": "4.0",
        "description": {
          "description_data": [
            {
              "lang": "eng",
              "value": "GnuPG 2.2.21 and 2.2.22 (and Gpg4win 3.1.12) has an array overflow, leading to a crash or possibly unspecified other impact, when a victim imports an attacker\u0027s OpenPGP key, and this key has AEAD preferences. The overflow is caused by a g10/key-check.c error. NOTE: GnuPG 2.3.x is unaffected. GnuPG 2.2.23 is a fixed version."
            }
          ]
        },
        "problemtype": {
          "problemtype_data": [
            {
              "description": [
                {
                  "lang": "eng",
                  "value": "n/a"
                }
              ]
            }
          ]
        },
        "references": {
          "reference_data": [
            {
              "name": "https://bugzilla.opensuse.org/show_bug.cgi?id=1176034",
              "refsource": "MISC",
              "url": "https://bugzilla.opensuse.org/show_bug.cgi?id=1176034"
            },
            {
              "name": "https://dev.gnupg.org/rG8ec9573e57866dda5efb4677d4454161517484bc",
              "refsource": "MISC",
              "url": "https://dev.gnupg.org/rG8ec9573e57866dda5efb4677d4454161517484bc"
            },
            {
              "name": "https://lists.gnupg.org/pipermail/gnupg-announce/2020q3/000448.html",
              "refsource": "MISC",
              "url": "https://lists.gnupg.org/pipermail/gnupg-announce/2020q3/000448.html"
            },
            {
              "name": "https://dev.gnupg.org/T5050",
              "refsource": "MISC",
              "url": "https://dev.gnupg.org/T5050"
            },
            {
              "name": "[oss-security] 20200903 GNUPG released with AEAD sec fix CVE-2020-25125",
              "refsource": "MLIST",
              "url": "http://www.openwall.com/lists/oss-security/2020/09/03/4"
            },
            {
              "name": "[oss-security] 20200903 CVE-2020-25125: gnupg2: buffer overflow when importing a key with AEAD preferences",
              "refsource": "MLIST",
              "url": "http://www.openwall.com/lists/oss-security/2020/09/03/5"
            }
          ]
        }
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
    "assignerShortName": "mitre",
    "cveId": "CVE-2020-25125",
    "datePublished": "2020-09-03T17:48:07.000Z",
    "dateReserved": "2020-09-03T00:00:00.000Z",
    "dateUpdated": "2024-08-04T15:26:09.468Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1",
  "vulnerability-lookup:meta": {
    "epss": {
      "cve": "CVE-2020-25125",
      "date": "2026-09-16",
      "epss": "0.01283",
      "percentile": "0.68602"
    },
    "fkie_nvd": {
      "configurations": "[{\"nodes\": [{\"operator\": \"OR\", \"negate\": false, \"cpeMatch\": [{\"vulnerable\": true, \"criteria\": \"cpe:2.3:a:gnupg:gnupg:2.2.21:*:*:*:*:*:*:*\", \"matchCriteriaId\": \"36CA3361-1B43-4A9B-A941-01D6EEEDCEEA\"}, {\"vulnerable\": true, \"criteria\": \"cpe:2.3:a:gnupg:gnupg:2.2.22:*:*:*:*:*:*:*\", \"matchCriteriaId\": \"74C78597-A629-4D17-A788-2388854223FC\"}, {\"vulnerable\": true, \"criteria\": \"cpe:2.3:a:gpg4win:gpg4win:3.1.12:*:*:*:*:*:*:*\", \"matchCriteriaId\": \"4CF58960-B2B6-4A6A-8595-831786580911\"}]}]}]",
      "descriptions": "[{\"lang\": \"en\", \"value\": \"GnuPG 2.2.21 and 2.2.22 (and Gpg4win 3.1.12) has an array overflow, leading to a crash or possibly unspecified other impact, when a victim imports an attacker\u0027s OpenPGP key, and this key has AEAD preferences. The overflow is caused by a g10/key-check.c error. NOTE: GnuPG 2.3.x is unaffected. GnuPG 2.2.23 is a fixed version.\"}, {\"lang\": \"es\", \"value\": \"GnuPG versiones 2.2.21 y 2.2.22 (y Gpg4win versi\\u00f3n 3.1.12), presenta un desbordamiento de la matriz, conllevando a un bloqueo o posiblemente otro impacto no especificado, cuando una v\\u00edctima importa la clave OpenPGP de un atacante, y esta clave contiene preferencias AEAD.\u0026#xa0;El desbordamiento es causado por un error en el archivo g10/key-check.c.\u0026#xa0;NOTA: GnuPG versi\\u00f3n 2.3.x, no est\\u00e1 afectado.\u0026#xa0;GnuPG versi\\u00f3n 2.2.23 es una versi\\u00f3n corregida\"}]",
      "id": "CVE-2020-25125",
      "lastModified": "2024-11-21T05:17:24.637",
      "metrics": "{\"cvssMetricV31\": [{\"source\": \"nvd@nist.gov\", \"type\": \"Primary\", \"cvssData\": {\"version\": \"3.1\", \"vectorString\": \"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H\", \"baseScore\": 7.8, \"baseSeverity\": \"HIGH\", \"attackVector\": \"LOCAL\", \"attackComplexity\": \"LOW\", \"privilegesRequired\": \"NONE\", \"userInteraction\": \"REQUIRED\", \"scope\": \"UNCHANGED\", \"confidentialityImpact\": \"HIGH\", \"integrityImpact\": \"HIGH\", \"availabilityImpact\": \"HIGH\"}, \"exploitabilityScore\": 1.8, \"impactScore\": 5.9}], \"cvssMetricV2\": [{\"source\": \"nvd@nist.gov\", \"type\": \"Primary\", \"cvssData\": {\"version\": \"2.0\", \"vectorString\": \"AV:N/AC:M/Au:N/C:P/I:P/A:P\", \"baseScore\": 6.8, \"accessVector\": \"NETWORK\", \"accessComplexity\": \"MEDIUM\", \"authentication\": \"NONE\", \"confidentialityImpact\": \"PARTIAL\", \"integrityImpact\": \"PARTIAL\", \"availabilityImpact\": \"PARTIAL\"}, \"baseSeverity\": \"MEDIUM\", \"exploitabilityScore\": 8.6, \"impactScore\": 6.4, \"acInsufInfo\": false, \"obtainAllPrivilege\": false, \"obtainUserPrivilege\": false, \"obtainOtherPrivilege\": false, \"userInteractionRequired\": true}]}",
      "published": "2020-09-03T18:15:15.160",
      "references": "[{\"url\": \"http://www.openwall.com/lists/oss-security/2020/09/03/4\", \"source\": \"cve@mitre.org\", \"tags\": [\"Mailing List\", \"Third Party Advisory\"]}, {\"url\": \"http://www.openwall.com/lists/oss-security/2020/09/03/5\", \"source\": \"cve@mitre.org\", \"tags\": [\"Mailing List\", \"Third Party Advisory\"]}, {\"url\": \"https://bugzilla.opensuse.org/show_bug.cgi?id=1176034\", \"source\": \"cve@mitre.org\", \"tags\": [\"Exploit\", \"Issue Tracking\", \"Third Party Advisory\"]}, {\"url\": \"https://dev.gnupg.org/T5050\", \"source\": \"cve@mitre.org\", \"tags\": [\"Mailing List\"]}, {\"url\": \"https://dev.gnupg.org/rG8ec9573e57866dda5efb4677d4454161517484bc\", \"source\": \"cve@mitre.org\", \"tags\": [\"Patch\", \"Vendor Advisory\"]}, {\"url\": \"https://lists.gnupg.org/pipermail/gnupg-announce/2020q3/000448.html\", \"source\": \"cve@mitre.org\", \"tags\": [\"Vendor Advisory\"]}, {\"url\": \"http://www.openwall.com/lists/oss-security/2020/09/03/4\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\", \"tags\": [\"Mailing List\", \"Third Party Advisory\"]}, {\"url\": \"http://www.openwall.com/lists/oss-security/2020/09/03/5\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\", \"tags\": [\"Mailing List\", \"Third Party Advisory\"]}, {\"url\": \"https://bugzilla.opensuse.org/show_bug.cgi?id=1176034\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\", \"tags\": [\"Exploit\", \"Issue Tracking\", \"Third Party Advisory\"]}, {\"url\": \"https://dev.gnupg.org/T5050\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\", \"tags\": [\"Mailing List\"]}, {\"url\": \"https://dev.gnupg.org/rG8ec9573e57866dda5efb4677d4454161517484bc\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\", \"tags\": [\"Patch\", \"Vendor Advisory\"]}, {\"url\": \"https://lists.gnupg.org/pipermail/gnupg-announce/2020q3/000448.html\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\", \"tags\": [\"Vendor Advisory\"]}]",
      "sourceIdentifier": "cve@mitre.org",
      "vulnStatus": "Modified",
      "weaknesses": "[{\"source\": \"nvd@nist.gov\", \"type\": \"Primary\", \"description\": [{\"lang\": \"en\", \"value\": \"CWE-120\"}]}]"
    },
    "nvd": "{\"cve\":{\"id\":\"CVE-2020-25125\",\"sourceIdentifier\":\"cve@mitre.org\",\"published\":\"2020-09-03T18:15:15.160\",\"lastModified\":\"2024-11-21T05:17:24.637\",\"vulnStatus\":\"Modified\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"GnuPG 2.2.21 and 2.2.22 (and Gpg4win 3.1.12) has an array overflow, leading to a crash or possibly unspecified other impact, when a victim imports an attacker\u0027s OpenPGP key, and this key has AEAD preferences. The overflow is caused by a g10/key-check.c error. NOTE: GnuPG 2.3.x is unaffected. GnuPG 2.2.23 is a fixed version.\"},{\"lang\":\"es\",\"value\":\"GnuPG versiones 2.2.21 y 2.2.22 (y Gpg4win versi\u00f3n 3.1.12), presenta un desbordamiento de la matriz, conllevando a un bloqueo o posiblemente otro impacto no especificado, cuando una v\u00edctima importa la clave OpenPGP de un atacante, y esta clave contiene preferencias AEAD.\u0026#xa0;El desbordamiento es causado por un error en el archivo g10/key-check.c.\u0026#xa0;NOTA: GnuPG versi\u00f3n 2.3.x, no est\u00e1 afectado.\u0026#xa0;GnuPG versi\u00f3n 2.2.23 es una versi\u00f3n corregida\"}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H\",\"baseScore\":7.8,\"baseSeverity\":\"HIGH\",\"attackVector\":\"LOCAL\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"NONE\",\"userInteraction\":\"REQUIRED\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"HIGH\",\"integrityImpact\":\"HIGH\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":1.8,\"impactScore\":5.9}],\"cvssMetricV2\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"2.0\",\"vectorString\":\"AV:N/AC:M/Au:N/C:P/I:P/A:P\",\"baseScore\":6.8,\"accessVector\":\"NETWORK\",\"accessComplexity\":\"MEDIUM\",\"authentication\":\"NONE\",\"confidentialityImpact\":\"PARTIAL\",\"integrityImpact\":\"PARTIAL\",\"availabilityImpact\":\"PARTIAL\"},\"baseSeverity\":\"MEDIUM\",\"exploitabilityScore\":8.6,\"impactScore\":6.4,\"acInsufInfo\":false,\"obtainAllPrivilege\":false,\"obtainUserPrivilege\":false,\"obtainOtherPrivilege\":false,\"userInteractionRequired\":true}]},\"weaknesses\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-120\"}]}],\"configurations\":[{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:gnupg:gnupg:2.2.21:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"36CA3361-1B43-4A9B-A941-01D6EEEDCEEA\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:gnupg:gnupg:2.2.22:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"74C78597-A629-4D17-A788-2388854223FC\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:gpg4win:gpg4win:3.1.12:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"4CF58960-B2B6-4A6A-8595-831786580911\"}]}]}],\"references\":[{\"url\":\"http://www.openwall.com/lists/oss-security/2020/09/03/4\",\"source\":\"cve@mitre.org\",\"tags\":[\"Mailing List\",\"Third Party Advisory\"]},{\"url\":\"http://www.openwall.com/lists/oss-security/2020/09/03/5\",\"source\":\"cve@mitre.org\",\"tags\":[\"Mailing List\",\"Third Party Advisory\"]},{\"url\":\"https://bugzilla.opensuse.org/show_bug.cgi?id=1176034\",\"source\":\"cve@mitre.org\",\"tags\":[\"Exploit\",\"Issue Tracking\",\"Third Party Advisory\"]},{\"url\":\"https://dev.gnupg.org/T5050\",\"source\":\"cve@mitre.org\",\"tags\":[\"Mailing List\"]},{\"url\":\"https://dev.gnupg.org/rG8ec9573e57866dda5efb4677d4454161517484bc\",\"source\":\"cve@mitre.org\",\"tags\":[\"Patch\",\"Vendor Advisory\"]},{\"url\":\"https://lists.gnupg.org/pipermail/gnupg-announce/2020q3/000448.html\",\"source\":\"cve@mitre.org\",\"tags\":[\"Vendor Advisory\"]},{\"url\":\"http://www.openwall.com/lists/oss-security/2020/09/03/4\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Mailing List\",\"Third Party Advisory\"]},{\"url\":\"http://www.openwall.com/lists/oss-security/2020/09/03/5\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Mailing List\",\"Third Party Advisory\"]},{\"url\":\"https://bugzilla.opensuse.org/show_bug.cgi?id=1176034\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Exploit\",\"Issue Tracking\",\"Third Party Advisory\"]},{\"url\":\"https://dev.gnupg.org/T5050\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Mailing List\"]},{\"url\":\"https://dev.gnupg.org/rG8ec9573e57866dda5efb4677d4454161517484bc\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Patch\",\"Vendor Advisory\"]},{\"url\":\"https://lists.gnupg.org/pipermail/gnupg-announce/2020q3/000448.html\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Vendor Advisory\"]}]}}",
    "redhat_vex": {
      "aggregate_severity": "Moderate",
      "current_release_date": "2025-11-21T16:56:29+00:00",
      "cve": "CVE-2020-25125",
      "id": "CVE-2020-25125",
      "initial_release_date": "2020-09-04T00:00:00+00:00",
      "product_status:known_not_affected": "11",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "gnupg: AEAD preference list overflow",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2020/cve-2020-25125.json",
      "version": "3"
    },
    "suse_vex": {
      "aggregate_severity": "important",
      "current_release_date": "2026-08-31T02:18:04Z",
      "cve": "CVE-2020-25125",
      "id": "CVE-2020-25125",
      "initial_release_date": "2023-02-15T03:54:07Z",
      "product_status:known_affected": "320",
      "product_status:known_not_affected": "87",
      "product_status:recommended": "192",
      "source": "SUSE CSAF VEX",
      "status": "interim",
      "title": "SUSE CVE CVE-2020-25125",
      "url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2020-25125.json",
      "version": "44"
    }
  }
}



Log in or create an account to share your comment.




Tags
Taxonomy of the tags.





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

Author Source Type Date Other

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.


Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.