fkie_cve-2018-6789
Vulnerability from fkie_nvd
Published
2018-02-08 23:29
Modified
2025-02-07 14:15
Severity ?
9.8 (Critical) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
9.8 (Critical) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Summary
An issue was discovered in the base64d function in the SMTP listener in Exim before 4.90.1. By sending a handcrafted message, a buffer overflow may happen. This can be used to execute code remotely.
References
cve@mitre.orghttp://openwall.com/lists/oss-security/2018/02/10/2Mailing List, Third Party Advisory
cve@mitre.orghttp://packetstormsecurity.com/files/162959/Exim-base64d-Buffer-Overflow.htmlExploit, Third Party Advisory, VDB Entry
cve@mitre.orghttp://www.openwall.com/lists/oss-security/2018/02/07/2Mailing List, Third Party Advisory
cve@mitre.orghttp://www.securityfocus.com/bid/103049Broken Link, Third Party Advisory, VDB Entry
cve@mitre.orghttp://www.securitytracker.com/id/1040461Broken Link, Third Party Advisory, VDB Entry
cve@mitre.orghttps://devco.re/blog/2018/03/06/exim-off-by-one-RCE-exploiting-CVE-2018-6789-en/Exploit, Third Party Advisory
cve@mitre.orghttps://exim.org/static/doc/security/CVE-2018-6789.txtVendor Advisory
cve@mitre.orghttps://git.exim.org/exim.git/commit/cf3cd306062a08969c41a1cdd32c6855f1abecf1Patch
cve@mitre.orghttps://lists.debian.org/debian-lts-announce/2018/02/msg00009.htmlMailing List, Third Party Advisory
cve@mitre.orghttps://usn.ubuntu.com/3565-1/Third Party Advisory
cve@mitre.orghttps://www.debian.org/security/2018/dsa-4110Mailing List, Third Party Advisory
cve@mitre.orghttps://www.exploit-db.com/exploits/44571/Exploit, Third Party Advisory, VDB Entry
cve@mitre.orghttps://www.exploit-db.com/exploits/45671/Exploit, Third Party Advisory, VDB Entry
af854a3a-2127-422b-91ae-364da2661108http://openwall.com/lists/oss-security/2018/02/10/2Mailing List, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108http://packetstormsecurity.com/files/162959/Exim-base64d-Buffer-Overflow.htmlExploit, Third Party Advisory, VDB Entry
af854a3a-2127-422b-91ae-364da2661108http://www.openwall.com/lists/oss-security/2018/02/07/2Mailing List, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108http://www.securityfocus.com/bid/103049Broken Link, Third Party Advisory, VDB Entry
af854a3a-2127-422b-91ae-364da2661108http://www.securitytracker.com/id/1040461Broken Link, Third Party Advisory, VDB Entry
af854a3a-2127-422b-91ae-364da2661108https://devco.re/blog/2018/03/06/exim-off-by-one-RCE-exploiting-CVE-2018-6789-en/Exploit, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://exim.org/static/doc/security/CVE-2018-6789.txtVendor Advisory
af854a3a-2127-422b-91ae-364da2661108https://git.exim.org/exim.git/commit/cf3cd306062a08969c41a1cdd32c6855f1abecf1Patch
af854a3a-2127-422b-91ae-364da2661108https://lists.debian.org/debian-lts-announce/2018/02/msg00009.htmlMailing List, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://usn.ubuntu.com/3565-1/Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://www.debian.org/security/2018/dsa-4110Mailing List, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://www.exploit-db.com/exploits/44571/Exploit, Third Party Advisory, VDB Entry
af854a3a-2127-422b-91ae-364da2661108https://www.exploit-db.com/exploits/45671/Exploit, Third Party Advisory, VDB Entry
Impacted products
Vendor Product Version
exim exim *
debian debian_linux 7.0
debian debian_linux 8.0
debian debian_linux 9.0
canonical ubuntu_linux 14.04
canonical ubuntu_linux 16.04
canonical ubuntu_linux 17.10


To clipboard 

{
  "cisaActionDue": "2022-05-03",
  "cisaExploitAdd": "2021-11-03",
  "cisaRequiredAction": "Apply updates per vendor instructions.",
  "cisaVulnerabilityName": "Exim Buffer Overflow Vulnerability",
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:exim:exim:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "EC35DD1C-8421-443D-9EBC-73F1C7B7306E",
              "versionEndExcluding": "4.90.1",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    },
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:o:debian:debian_linux:7.0:*:*:*:*:*:*:*",
              "matchCriteriaId": "16F59A04-14CF-49E2-9973-645477EA09DA",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*",
              "matchCriteriaId": "C11E6FB0-C8C0-4527-9AA0-CB9B316F8F43",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*",
              "matchCriteriaId": "DEECE5FC-CACF-4496-A3E7-164736409252",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    },
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:esm:*:*:*",
              "matchCriteriaId": "815D70A8-47D3-459C-A32C-9FEACA0659D1",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:esm:*:*:*",
              "matchCriteriaId": "7A5301BF-1402-4BE0-A0F8-69FBE79BC6D6",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:canonical:ubuntu_linux:17.10:*:*:*:*:*:*:*",
              "matchCriteriaId": "9070C9D8-A14A-467F-8253-33B966C16886",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "An issue was discovered in the base64d function in the SMTP listener in Exim before 4.90.1. By sending a handcrafted message, a buffer overflow may happen. This can be used to execute code remotely."
    },
    {
      "lang": "es",
      "value": "Se ha descubierto un problema en la funci\u00f3n base64d en el escuchador SMTP en Exim, en versiones anteriores a la 4.90.1. Al enviar un mensaje manipulado, podr\u00eda ocurrir un desbordamiento de b\u00fafer. Esto puede emplearse para ejecutar c\u00f3digo de forma remota."
    }
  ],
  "id": "CVE-2018-6789",
  "lastModified": "2025-02-07T14:15:44.870",
  "metrics": {
    "cvssMetricV2": [
      {
        "acInsufInfo": false,
        "baseSeverity": "HIGH",
        "cvssData": {
          "accessComplexity": "LOW",
          "accessVector": "NETWORK",
          "authentication": "NONE",
          "availabilityImpact": "PARTIAL",
          "baseScore": 7.5,
          "confidentialityImpact": "PARTIAL",
          "integrityImpact": "PARTIAL",
          "vectorString": "AV:N/AC:L/Au:N/C:P/I:P/A:P",
          "version": "2.0"
        },
        "exploitabilityScore": 10.0,
        "impactScore": 6.4,
        "obtainAllPrivilege": false,
        "obtainOtherPrivilege": false,
        "obtainUserPrivilege": false,
        "source": "nvd@nist.gov",
        "type": "Primary",
        "userInteractionRequired": false
      }
    ],
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "HIGH",
          "baseScore": 9.8,
          "baseSeverity": "CRITICAL",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 5.9,
        "source": "nvd@nist.gov",
        "type": "Primary"
      },
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "HIGH",
          "baseScore": 9.8,
          "baseSeverity": "CRITICAL",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 5.9,
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "type": "Secondary"
      }
    ]
  },
  "published": "2018-02-08T23:29:01.170",
  "references": [
    {
      "source": "cve@mitre.org",
      "tags": [
        "Mailing List",
        "Third Party Advisory"
      ],
      "url": "http://openwall.com/lists/oss-security/2018/02/10/2"
    },
    {
      "source": "cve@mitre.org",
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      "url": "http://packetstormsecurity.com/files/162959/Exim-base64d-Buffer-Overflow.html"
    },
    {
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    },
    {
      "source": "cve@mitre.org",
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      ],
      "url": "http://www.securityfocus.com/bid/103049"
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    {
      "source": "cve@mitre.org",
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    {
      "source": "cve@mitre.org",
      "tags": [
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      "url": "https://devco.re/blog/2018/03/06/exim-off-by-one-RCE-exploiting-CVE-2018-6789-en/"
    },
    {
      "source": "cve@mitre.org",
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      "url": "https://exim.org/static/doc/security/CVE-2018-6789.txt"
    },
    {
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      "tags": [
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    {
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    {
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    {
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  ],
  "sourceIdentifier": "cve@mitre.org",
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-120"
        }
      ],
      "source": "nvd@nist.gov",
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        }
      ],
      "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
      "type": "Secondary"
    }
  ]
}


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