Vulnerability-Lookup

CVE-2020-10957 (GCVE-0-2020-10957)

Vulnerability from cvelistv5 – Published: 2020-05-18 13:56 – Updated: 2024-08-04 11:21

Summary

In Dovecot before 2.3.10.1, unauthenticated sending of malformed parameters to a NOOP command causes a NULL Pointer Dereference and crash in submission-login, submission, or lmtp.

Severity

7.5 (High)


                        
                          CVSS:3.0/AC:L/AV:N/A:H/C:N/I:N/PR:N/S:U/UI:N

CWE

Assigner

mitre mitre root

References

10 references

URL	Tags
https://dovecot.org/security	x_refsource_MISC
https://www.openwall.com/lists/oss-security/2020/…	x_refsource_CONFIRM
http://www.openwall.com/lists/oss-security/2020/05/18/1	mailing-listx_refsource_MLIST
https://usn.ubuntu.com/4361-1/	vendor-advisoryx_refsource_UBUNTU
http://seclists.org/fulldisclosure/2020/May/37	mailing-listx_refsource_FULLDISC
http://packetstormsecurity.com/files/157771/Open-…	x_refsource_MISC
https://www.debian.org/security/2020/dsa-4690	vendor-advisoryx_refsource_DEBIAN
https://lists.fedoraproject.org/archives/list/pac…	vendor-advisoryx_refsource_FEDORA
http://lists.opensuse.org/opensuse-security-annou…	vendor-advisoryx_refsource_SUSE
https://lists.fedoraproject.org/archives/list/pac…	vendor-advisoryx_refsource_FEDORA

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Party Advisory\"]},{\"url\":\"http://www.openwall.com/lists/oss-security/2020/05/18/1\",\"source\":\"cve@mitre.org\",\"tags\":[\"Mailing List\",\"Third Party Advisory\"]},{\"url\":\"https://dovecot.org/security\",\"source\":\"cve@mitre.org\",\"tags\":[\"Vendor Advisory\"]},{\"url\":\"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/TTZN2VW55ZC2AQBGBJMLRJSZIKSB2NS6/\",\"source\":\"cve@mitre.org\"},{\"url\":\"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/VVUWHUUAFPC6XGIXYFIPTNBXLHPNM4W6/\",\"source\":\"cve@mitre.org\"},{\"url\":\"https://usn.ubuntu.com/4361-1/\",\"source\":\"cve@mitre.org\"},{\"url\":\"https://www.debian.org/security/2020/dsa-4690\",\"source\":\"cve@mitre.org\"},{\"url\":\"https://www.openwall.com/lists/oss-security/2020/05/18/1\",\"source\":\"cve@mitre.org\",\"tags\":[\"Mailing List\",\"Third Party Advisory\"]},{\"url\":\"http://lists.opensuse.org/opensuse-security-announce/2020-05/msg00059.html\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\"},{\"url\":\"http://packetstormsecurity.com/files/157771/Open-Xchange-Dovecot-2.3.10-Null-Pointer-Dereference-Denial-Of-Service.html\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\"},{\"url\":\"http://seclists.org/fulldisclosure/2020/May/37\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Exploit\",\"Third Party Advisory\"]},{\"url\":\"http://www.openwall.com/lists/oss-security/2020/05/18/1\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Mailing List\",\"Third Party Advisory\"]},{\"url\":\"https://dovecot.org/security\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Vendor Advisory\"]},{\"url\":\"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/TTZN2VW55ZC2AQBGBJMLRJSZIKSB2NS6/\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\"},{\"url\":\"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/VVUWHUUAFPC6XGIXYFIPTNBXLHPNM4W6/\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\"},{\"url\":\"https://usn.ubuntu.com/4361-1/\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\"},{\"url\":\"https://www.debian.org/security/2020/dsa-4690\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\"},{\"url\":\"https://www.openwall.com/lists/oss-security/2020/05/18/1\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Mailing List\",\"Third Party Advisory\"]}]}}",
    "redhat_vex": {
      "aggregate_severity": "Important",
      "current_release_date": "2025-11-21T16:54:20+00:00",
      "cve": "CVE-2020-10957",
      "id": "CVE-2020-10957",
      "initial_release_date": "2020-05-18T00:00:00+00:00",
      "product_status:fixed": "96",
      "product_status:known_not_affected": "13",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "dovecot: malformed NOOP commands leads to DoS",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2020/cve-2020-10957.json",
      "version": "3"
    },
    "suse_vex": {
      "aggregate_severity": "important",
      "current_release_date": "2026-09-13T00:06:23Z",
      "cve": "CVE-2020-10957",
      "id": "CVE-2020-10957",
      "initial_release_date": "2023-02-15T04:00:06Z",
      "product_status:known_not_affected": "21",
      "product_status:recommended": "394",
      "source": "SUSE CSAF VEX",
      "status": "interim",
      "title": "SUSE CVE CVE-2020-10957",
      "url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2020-10957.json",
      "version": "22"
    }
  }
}

CNVD-2020-30668

Vulnerability from cnvd - Published: 2020-05-28

Title

Dovecot代码问题漏洞

Description

Dovecot是一款开源的基于类Linux/UNIX系统的IMAP和POP3邮件服务器。 Dovecot存在代码问题漏洞。攻击者可借助特制参数利用该漏洞导致拒绝服务。

Severity

中

Patch Name

Dovecot代码问题漏洞的补丁

Patch Description

Dovecot是一款开源的基于类Linux/UNIX系统的IMAP和POP3邮件服务器。 Dovecot存在代码问题漏洞。攻击者可借助特制参数利用该漏洞导致拒绝服务。目前，供应商发布了安全公告及相关补丁信息，修复了此漏洞。

Formal description

厂商已发布了漏洞修复程序，请及时关注更新： https://dovecot.org/pipermail/dovecot-news/2020-May/000438.html

Reference

https://nvd.nist.gov/vuln/detail/CVE-2020-10957

Impacted products

Name
Dovecot Dovecot <2.3.10.1

Show details on source website

JSON

To clipboard

{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2020-10957"
    }
  },
  "description": "Dovecot\u662f\u4e00\u6b3e\u5f00\u6e90\u7684\u57fa\u4e8e\u7c7bLinux/UNIX\u7cfb\u7edf\u7684IMAP\u548cPOP3\u90ae\u4ef6\u670d\u52a1\u5668\u3002\n\nDovecot\u5b58\u5728\u4ee3\u7801\u95ee\u9898\u6f0f\u6d1e\u3002\u653b\u51fb\u8005\u53ef\u501f\u52a9\u7279\u5236\u53c2\u6570\u5229\u7528\u8be5\u6f0f\u6d1e\u5bfc\u81f4\u62d2\u7edd\u670d\u52a1\u3002",
  "formalWay": "\u5382\u5546\u5df2\u53d1\u5e03\u4e86\u6f0f\u6d1e\u4fee\u590d\u7a0b\u5e8f\uff0c\u8bf7\u53ca\u65f6\u5173\u6ce8\u66f4\u65b0\uff1a\r\nhttps://dovecot.org/pipermail/dovecot-news/2020-May/000438.html",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2020-30668",
  "openTime": "2020-05-28",
  "patchDescription": "Dovecot\u662f\u4e00\u6b3e\u5f00\u6e90\u7684\u57fa\u4e8e\u7c7bLinux/UNIX\u7cfb\u7edf\u7684IMAP\u548cPOP3\u90ae\u4ef6\u670d\u52a1\u5668\u3002\r\n\r\nDovecot\u5b58\u5728\u4ee3\u7801\u95ee\u9898\u6f0f\u6d1e\u3002\u653b\u51fb\u8005\u53ef\u501f\u52a9\u7279\u5236\u53c2\u6570\u5229\u7528\u8be5\u6f0f\u6d1e\u5bfc\u81f4\u62d2\u7edd\u670d\u52a1\u3002\u76ee\u524d\uff0c\u4f9b\u5e94\u5546\u53d1\u5e03\u4e86\u5b89\u5168\u516c\u544a\u53ca\u76f8\u5173\u8865\u4e01\u4fe1\u606f\uff0c\u4fee\u590d\u4e86\u6b64\u6f0f\u6d1e\u3002",
  "patchName": "Dovecot\u4ee3\u7801\u95ee\u9898\u6f0f\u6d1e\u7684\u8865\u4e01",
  "products": {
    "product": "Dovecot Dovecot \u003c2.3.10.1"
  },
  "referenceLink": "https://nvd.nist.gov/vuln/detail/CVE-2020-10957",
  "serverity": "\u4e2d",
  "submitTime": "2020-05-19",
  "title": "Dovecot\u4ee3\u7801\u95ee\u9898\u6f0f\u6d1e"
}

FKIE_CVE-2020-10957

Vulnerability from fkie_nvd - Published: 2020-05-18 14:15 - Updated: 2026-06-17 02:48

Severity

7.5 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Summary

In Dovecot before 2.3.10.1, unauthenticated sending of malformed parameters to a NOOP command causes a NULL Pointer Dereference and crash in submission-login, submission, or lmtp.

References

URL	Tags
cve@mitre.org	http://lists.opensuse.org/opensuse-security-announce/2020-05/msg00059.html
cve@mitre.org	http://packetstormsecurity.com/files/157771/Open-Xchange-Dovecot-2.3.10-Null-Pointer-Dereference-Denial-Of-Service.html
cve@mitre.org	http://seclists.org/fulldisclosure/2020/May/37	Exploit, Third Party Advisory
cve@mitre.org	http://www.openwall.com/lists/oss-security/2020/05/18/1	Mailing List, Third Party Advisory
cve@mitre.org	https://dovecot.org/security	Vendor Advisory
cve@mitre.org	https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/TTZN2VW55ZC2AQBGBJMLRJSZIKSB2NS6/
cve@mitre.org	https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/VVUWHUUAFPC6XGIXYFIPTNBXLHPNM4W6/
cve@mitre.org	https://usn.ubuntu.com/4361-1/
cve@mitre.org	https://www.debian.org/security/2020/dsa-4690
cve@mitre.org	https://www.openwall.com/lists/oss-security/2020/05/18/1	Mailing List, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108	http://lists.opensuse.org/opensuse-security-announce/2020-05/msg00059.html
af854a3a-2127-422b-91ae-364da2661108	http://packetstormsecurity.com/files/157771/Open-Xchange-Dovecot-2.3.10-Null-Pointer-Dereference-Denial-Of-Service.html
af854a3a-2127-422b-91ae-364da2661108	http://seclists.org/fulldisclosure/2020/May/37	Exploit, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108	http://www.openwall.com/lists/oss-security/2020/05/18/1	Mailing List, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108	https://dovecot.org/security	Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108	https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/TTZN2VW55ZC2AQBGBJMLRJSZIKSB2NS6/
af854a3a-2127-422b-91ae-364da2661108	https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/VVUWHUUAFPC6XGIXYFIPTNBXLHPNM4W6/
af854a3a-2127-422b-91ae-364da2661108	https://usn.ubuntu.com/4361-1/
af854a3a-2127-422b-91ae-364da2661108	https://www.debian.org/security/2020/dsa-4690
af854a3a-2127-422b-91ae-364da2661108	https://www.openwall.com/lists/oss-security/2020/05/18/1	Mailing List, Third Party Advisory

Impacted products

	Vendor	Product	Version
	dovecot	dovecot	*

JSON

To clipboard

{
  "affected": [
    {
      "affectedData": [
        {
          "product": "n/a",
          "vendor": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ],
      "source": "cve@mitre.org"
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:dovecot:dovecot:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "8B753CF9-8EB3-4925-9772-F6044915C907",
              "versionEndExcluding": "2.3.10.1",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In Dovecot before 2.3.10.1, unauthenticated sending of malformed parameters to a NOOP command causes a NULL Pointer Dereference and crash in submission-login, submission, or lmtp."
    },
    {
      "lang": "es",
      "value": "En Dovecot versiones anteriores a 2.3.10.1, el env\u00edo no autenticado de par\u00e1metros malformados hacia un comando NOOP causa una Desreferencia del Puntero NULL y un bloqueo en submission-login o lmtp."
    }
  ],
  "id": "CVE-2020-10957",
  "lastModified": "2026-06-17T02:48:44.850",
  "metrics": {
    "cvssMetricV2": [
      {
        "acInsufInfo": false,
        "baseSeverity": "MEDIUM",
        "cvssData": {
          "accessComplexity": "LOW",
          "accessVector": "NETWORK",
          "authentication": "NONE",
          "availabilityImpact": "PARTIAL",
          "baseScore": 5.0,
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "vectorString": "AV:N/AC:L/Au:N/C:N/I:N/A:P",
          "version": "2.0"
        },
        "exploitabilityScore": 10.0,
        "impactScore": 2.9,
        "obtainAllPrivilege": false,
        "obtainOtherPrivilege": false,
        "obtainUserPrivilege": false,
        "source": "nvd@nist.gov",
        "type": "Primary",
        "userInteractionRequired": false
      }
    ],
    "cvssMetricV30": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "HIGH",
          "baseScore": 7.5,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
          "version": "3.0"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 3.6,
        "source": "cve@mitre.org",
        "type": "Secondary"
      }
    ],
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "HIGH",
          "baseScore": 7.5,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 3.6,
        "source": "nvd@nist.gov",
        "type": "Primary"
      }
    ]
  },
  "published": "2020-05-18T14:15:11.717",
  "references": [
    {
      "source": "cve@mitre.org",
      "url": "http://lists.opensuse.org/opensuse-security-announce/2020-05/msg00059.html"
    },
    {
      "source": "cve@mitre.org",
      "url": "http://packetstormsecurity.com/files/157771/Open-Xchange-Dovecot-2.3.10-Null-Pointer-Dereference-Denial-Of-Service.html"
    },
    {
      "source": "cve@mitre.org",
      "tags": [
        "Exploit",
        "Third Party Advisory"
      ],
      "url": "http://seclists.org/fulldisclosure/2020/May/37"
    },
    {
      "source": "cve@mitre.org",
      "tags": [
        "Mailing List",
        "Third Party Advisory"
      ],
      "url": "http://www.openwall.com/lists/oss-security/2020/05/18/1"
    },
    {
      "source": "cve@mitre.org",
      "tags": [
        "Vendor Advisory"
      ],
      "url": "https://dovecot.org/security"
    },
    {
      "source": "cve@mitre.org",
      "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/TTZN2VW55ZC2AQBGBJMLRJSZIKSB2NS6/"
    },
    {
      "source": "cve@mitre.org",
      "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/VVUWHUUAFPC6XGIXYFIPTNBXLHPNM4W6/"
    },
    {
      "source": "cve@mitre.org",
      "url": "https://usn.ubuntu.com/4361-1/"
    },
    {
      "source": "cve@mitre.org",
      "url": "https://www.debian.org/security/2020/dsa-4690"
    },
    {
      "source": "cve@mitre.org",
      "tags": [
        "Mailing List",
        "Third Party Advisory"
      ],
      "url": "https://www.openwall.com/lists/oss-security/2020/05/18/1"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "http://lists.opensuse.org/opensuse-security-announce/2020-05/msg00059.html"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "http://packetstormsecurity.com/files/157771/Open-Xchange-Dovecot-2.3.10-Null-Pointer-Dereference-Denial-Of-Service.html"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Exploit",
        "Third Party Advisory"
      ],
      "url": "http://seclists.org/fulldisclosure/2020/May/37"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Mailing List",
        "Third Party Advisory"
      ],
      "url": "http://www.openwall.com/lists/oss-security/2020/05/18/1"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Vendor Advisory"
      ],
      "url": "https://dovecot.org/security"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/TTZN2VW55ZC2AQBGBJMLRJSZIKSB2NS6/"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/VVUWHUUAFPC6XGIXYFIPTNBXLHPNM4W6/"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "https://usn.ubuntu.com/4361-1/"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "https://www.debian.org/security/2020/dsa-4690"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Mailing List",
        "Third Party Advisory"
      ],
      "url": "https://www.openwall.com/lists/oss-security/2020/05/18/1"
    }
  ],
  "sourceIdentifier": "cve@mitre.org",
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-476"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}

GHSA-Q55G-848V-F654

Vulnerability from github – Published: 2022-05-24 17:18 – Updated: 2022-05-24 17:18

Details

In Dovecot before 2.3.10.1, unauthenticated sending of malformed parameters to a NOOP command causes a NULL Pointer Dereference and crash in submission-login, submission, or lmtp.

Show details on source website

JSON

To clipboard

{
  "affected": [],
  "aliases": [
    "CVE-2020-10957"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2020-05-18T14:15:00Z",
    "severity": "MODERATE"
  },
  "details": "In Dovecot before 2.3.10.1, unauthenticated sending of malformed parameters to a NOOP command causes a NULL Pointer Dereference and crash in submission-login, submission, or lmtp.",
  "id": "GHSA-q55g-848v-f654",
  "modified": "2022-05-24T17:18:02Z",
  "published": "2022-05-24T17:18:02Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2020-10957"
    },
    {
      "type": "WEB",
      "url": "https://dovecot.org/security"
    },
    {
      "type": "WEB",
      "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/TTZN2VW55ZC2AQBGBJMLRJSZIKSB2NS6"
    },
    {
      "type": "WEB",
      "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/VVUWHUUAFPC6XGIXYFIPTNBXLHPNM4W6"
    },
    {
      "type": "WEB",
      "url": "https://usn.ubuntu.com/4361-1"
    },
    {
      "type": "WEB",
      "url": "https://www.debian.org/security/2020/dsa-4690"
    },
    {
      "type": "WEB",
      "url": "https://www.openwall.com/lists/oss-security/2020/05/18/1"
    },
    {
      "type": "WEB",
      "url": "http://lists.opensuse.org/opensuse-security-announce/2020-05/msg00059.html"
    },
    {
      "type": "WEB",
      "url": "http://packetstormsecurity.com/files/157771/Open-Xchange-Dovecot-2.3.10-Null-Pointer-Dereference-Denial-Of-Service.html"
    },
    {
      "type": "WEB",
      "url": "http://seclists.org/fulldisclosure/2020/May/37"
    },
    {
      "type": "WEB",
      "url": "http://www.openwall.com/lists/oss-security/2020/05/18/1"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}

GSD-2020-10957

Vulnerability from gsd - Updated: 2023-12-13 01:22

Details

In Dovecot before 2.3.10.1, unauthenticated sending of malformed parameters to a NOOP command causes a NULL Pointer Dereference and crash in submission-login, submission, or lmtp.

Aliases

CVE-2020-10957

Aliases

CVE-2020-10957

JSON

To clipboard

{
  "GSD": {
    "alias": "CVE-2020-10957",
    "description": "In Dovecot before 2.3.10.1, unauthenticated sending of malformed parameters to a NOOP command causes a NULL Pointer Dereference and crash in submission-login, submission, or lmtp.",
    "id": "GSD-2020-10957",
    "references": [
      "https://www.suse.com/security/cve/CVE-2020-10957.html",
      "https://www.debian.org/security/2020/dsa-4690",
      "https://access.redhat.com/errata/RHSA-2020:2901",
      "https://ubuntu.com/security/CVE-2020-10957",
      "https://advisories.mageia.org/CVE-2020-10957.html",
      "https://security.archlinux.org/CVE-2020-10957",
      "https://linux.oracle.com/cve/CVE-2020-10957.html",
      "https://packetstormsecurity.com/files/cve/CVE-2020-10957"
    ]
  },
  "gsd": {
    "metadata": {
      "exploitCode": "unknown",
      "remediation": "unknown",
      "reportConfidence": "confirmed",
      "type": "vulnerability"
    },
    "osvSchema": {
      "aliases": [
        "CVE-2020-10957"
      ],
      "details": "In Dovecot before 2.3.10.1, unauthenticated sending of malformed parameters to a NOOP command causes a NULL Pointer Dereference and crash in submission-login, submission, or lmtp.",
      "id": "GSD-2020-10957",
      "modified": "2023-12-13T01:22:04.910794Z",
      "schema_version": "1.4.0"
    }
  },
  "namespaces": {
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    },
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      "configurations": {
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            },
            {
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            },
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            },
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            {
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              "refsource": "MISC",
              "tags": [],
              "url": "http://packetstormsecurity.com/files/157771/Open-Xchange-Dovecot-2.3.10-Null-Pointer-Dereference-Denial-Of-Service.html"
            },
            {
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              "refsource": "DEBIAN",
              "tags": [],
              "url": "https://www.debian.org/security/2020/dsa-4690"
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              "tags": [],
              "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/TTZN2VW55ZC2AQBGBJMLRJSZIKSB2NS6/"
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          },
          "exploitabilityScore": 10.0,
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        },
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            "attackVector": "NETWORK",
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            "userInteraction": "NONE",
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        }
      },
      "lastModifiedDate": "2020-05-28T04:15Z",
      "publishedDate": "2020-05-18T14:15Z"
    }
  }
}

OPENSUSE-SU-2020:0720-1

Vulnerability from csaf_opensuse - Published: 2020-05-26 08:13 - Updated: 2020-05-26 08:13

Summary

Security update for dovecot23

Severity

Important

Scope

3 vulnerabilities in this advisory, including CVE-2020-10957.

CVE-2020-10957

7.5 (High)


                
                  CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Recommended: 9 products

Open the full advisory

OPENSUSE-SU-2024:10726-1

Vulnerability from csaf_opensuse - Published: 2024-06-15 00:00 - Updated: 2024-06-15 00:00

Summary

dovecot23-2.3.16-1.6 on GA media

Severity

Moderate

Scope

22 vulnerabilities in this advisory, including CVE-2020-10957.

CVE-2020-10957

7.5 (High)


                
                  CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Recommended: 36 products

Open the full advisory

OPENSUSE-SU-2025:14715-1

Vulnerability from csaf_opensuse - Published: 2025-01-30 00:00 - Updated: 2025-01-30 00:00

Summary

dovecot24-2.4.0-1.1 on GA media

Severity

Moderate

Scope

24 vulnerabilities in this advisory, including CVE-2020-10957.

CVE-2020-10957

7.5 (High)


                
                  CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Recommended: 32 products

Open the full advisory

RHSA-2020:2901

Vulnerability from csaf_redhat - Published: 2020-07-13 20:32 - Updated: 2026-06-25 10:56

Summary

Red Hat Security Advisory: dovecot security update

Severity

Important

Scope

1 vulnerability in this advisory, including CVE-2020-10957.

CVE-2020-10957

A flaw was found in Dovecot, where it did not properly handle certain malformed NOOP commands. This flaw allows a malicious attacker to cause the submission, submission-login, or lmtp services to crash by sending specially crafted commands.

7.5 (High)


                
                  CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Fixed: 68 products

https://access.redhat.com/errata/RHSA-2020:2901

Open the full advisory

RHSA-2020_2901

Vulnerability from csaf_redhat - Published: 2020-07-13 20:32 - Updated: 2024-11-22 15:21

Summary

Red Hat Security Advisory: dovecot security update

Severity

Important

Scope

1 vulnerability in this advisory, including CVE-2020-10957.

CVE-2020-10957

7.5 (High)


                
                  CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Fixed: 96 products

https://access.redhat.com/errata/RHSA-2020:2901

Open the full advisory

SUSE-SU-2020:1379-1

Vulnerability from csaf_suse - Published: 2020-05-22 06:00 - Updated: 2020-05-22 06:00

Summary

Security update for dovecot23

Severity

Important

Scope

3 vulnerabilities in this advisory, including CVE-2020-10957.

CVE-2020-10957

7.5 (High)


                
                  CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Recommended: 90 products

Open the full advisory

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.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

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.

Action not permitted

CVE-2020-10957 (GCVE-0-2020-10957)

Tags

Sightings

Nomenclature

Related by attack behaviour