CVE-2012-5671 (GCVE-0-2012-5671)

Vulnerability from cvelistv5 – Published: 2012-10-31 16:00 – Updated: 2024-08-06 21:14
VLAI?
Summary
Heap-based buffer overflow in the dkim_exim_query_dns_txt function in dkim.c in Exim 4.70 through 4.80, when DKIM support is enabled and acl_smtp_connect and acl_smtp_rcpt are not set to "warn control = dkim_disable_verify," allows remote attackers to execute arbitrary code via an email from a malicious DNS server.
Severity ?
No CVSS data available.
CWE
  • n/a
Assigner
References
http://secunia.com/advisories/51115 third-party-advisoryx_refsource_SECUNIA
http://www.openwall.com/lists/oss-security/2012/10/26/5 mailing-listx_refsource_MLIST
http://secunia.com/advisories/51155 third-party-advisoryx_refsource_SECUNIA
https://lists.exim.org/lurker/message/20121026.08… mailing-listx_refsource_MLIST
http://www.ubuntu.com/usn/USN-1618-1 vendor-advisoryx_refsource_UBUNTU
http://secunia.com/advisories/51098 third-party-advisoryx_refsource_SECUNIA
http://lists.fedoraproject.org/pipermail/package-… vendor-advisoryx_refsource_FEDORA
http://lists.fedoraproject.org/pipermail/package-… vendor-advisoryx_refsource_FEDORA
http://secunia.com/advisories/51153 third-party-advisoryx_refsource_SECUNIA
http://osvdb.org/86616 vdb-entryx_refsource_OSVDB
http://lists.opensuse.org/opensuse-security-annou… vendor-advisoryx_refsource_SUSE
http://www.securityfocus.com/bid/56285 vdb-entryx_refsource_BID
https://exchange.xforce.ibmcloud.com/vulnerabilit… vdb-entryx_refsource_XF
http://lists.fedoraproject.org/pipermail/package-… vendor-advisoryx_refsource_FEDORA
http://www.debian.org/security/2012/dsa-2566 vendor-advisoryx_refsource_DEBIAN
Show details on NVD website
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      "metrics": "{\"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\": false}]}",
      "published": "2012-10-31T16:55:06.577",
      "references": "[{\"url\": \"http://lists.fedoraproject.org/pipermail/package-announce/2012-November/091664.html\", \"source\": \"cve@mitre.org\"}, {\"url\": \"http://lists.fedoraproject.org/pipermail/package-announce/2012-October/090900.html\", \"source\": \"cve@mitre.org\"}, {\"url\": \"http://lists.fedoraproject.org/pipermail/package-announce/2012-October/090963.html\", \"source\": \"cve@mitre.org\"}, {\"url\": \"http://lists.opensuse.org/opensuse-security-announce/2012-10/msg00018.html\", \"source\": \"cve@mitre.org\"}, {\"url\": \"http://osvdb.org/86616\", \"source\": \"cve@mitre.org\"}, {\"url\": \"http://secunia.com/advisories/51098\", \"source\": \"cve@mitre.org\", \"tags\": [\"Vendor Advisory\"]}, {\"url\": \"http://secunia.com/advisories/51115\", \"source\": \"cve@mitre.org\"}, {\"url\": \"http://secunia.com/advisories/51153\", \"source\": \"cve@mitre.org\"}, {\"url\": \"http://secunia.com/advisories/51155\", \"source\": \"cve@mitre.org\"}, {\"url\": \"http://www.debian.org/security/2012/dsa-2566\", \"source\": \"cve@mitre.org\"}, {\"url\": \"http://www.openwall.com/lists/oss-security/2012/10/26/5\", \"source\": \"cve@mitre.org\"}, {\"url\": \"http://www.securityfocus.com/bid/56285\", \"source\": \"cve@mitre.org\"}, {\"url\": \"http://www.ubuntu.com/usn/USN-1618-1\", \"source\": \"cve@mitre.org\"}, {\"url\": \"https://exchange.xforce.ibmcloud.com/vulnerabilities/79615\", \"source\": \"cve@mitre.org\"}, {\"url\": \"https://lists.exim.org/lurker/message/20121026.080330.74b9147b.en.html\", \"source\": \"cve@mitre.org\"}, {\"url\": \"http://lists.fedoraproject.org/pipermail/package-announce/2012-November/091664.html\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\"}, {\"url\": \"http://lists.fedoraproject.org/pipermail/package-announce/2012-October/090900.html\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\"}, {\"url\": \"http://lists.fedoraproject.org/pipermail/package-announce/2012-October/090963.html\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\"}, {\"url\": \"http://lists.opensuse.org/opensuse-security-announce/2012-10/msg00018.html\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\"}, {\"url\": \"http://osvdb.org/86616\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\"}, {\"url\": \"http://secunia.com/advisories/51098\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\", \"tags\": [\"Vendor Advisory\"]}, {\"url\": \"http://secunia.com/advisories/51115\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\"}, {\"url\": \"http://secunia.com/advisories/51153\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\"}, {\"url\": \"http://secunia.com/advisories/51155\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\"}, {\"url\": \"http://www.debian.org/security/2012/dsa-2566\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\"}, {\"url\": \"http://www.openwall.com/lists/oss-security/2012/10/26/5\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\"}, {\"url\": \"http://www.securityfocus.com/bid/56285\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\"}, {\"url\": \"http://www.ubuntu.com/usn/USN-1618-1\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\"}, {\"url\": \"https://exchange.xforce.ibmcloud.com/vulnerabilities/79615\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\"}, {\"url\": \"https://lists.exim.org/lurker/message/20121026.080330.74b9147b.en.html\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\"}]",
      "sourceIdentifier": "cve@mitre.org",
      "vulnStatus": "Modified",
      "weaknesses": "[{\"source\": \"nvd@nist.gov\", \"type\": \"Primary\", \"description\": [{\"lang\": \"en\", \"value\": \"CWE-119\"}]}]"
    },
    "nvd": "{\"cve\":{\"id\":\"CVE-2012-5671\",\"sourceIdentifier\":\"cve@mitre.org\",\"published\":\"2012-10-31T16:55:06.577\",\"lastModified\":\"2025-04-11T00:51:21.963\",\"vulnStatus\":\"Deferred\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"Heap-based buffer overflow in the dkim_exim_query_dns_txt function in dkim.c in Exim 4.70 through 4.80, when DKIM support is enabled and acl_smtp_connect and acl_smtp_rcpt are not set to \\\"warn control = dkim_disable_verify,\\\" allows remote attackers to execute arbitrary code via an email from a malicious DNS server.\"},{\"lang\":\"es\",\"value\":\"Desbordamiento de b\u00fafer basado en memoria din\u00e1mica en la funci\u00f3n dkim_exim_query_dns_txt en dkim.c en Exim v4.70 hasta v4.80, cuando el soporte DKIM est\u00e1 habilitado y acl_smtp_connect y acl_smtp_rcpt no est\u00e1n establecidos en \\\"warn control = dkim_disable_verify\\\", permite a atacantes remotos ejecutar c\u00f3digo arbitrario a trav\u00e9s de un correo electr\u00f3nico de un servidor DNS malicioso.\"}],\"metrics\":{\"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\":false}]},\"weaknesses\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-119\"}]}],\"configurations\":[{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:exim:exim:4.70:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"452E9C94-B7FF-40A9-A7F9-FC38824F6135\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:exim:exim:4.71:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"A8EB3709-D51F-46D1-99B8-CFB4C2275077\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:exim:exim:4.72:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"CBDB2156-072B-4392-9DC8-266FF1B8C7A4\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:exim:exim:4.73:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"02F8A053-4578-4C45-A193-C188E45ED010\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:exim:exim:4.74:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"A5DC11D6-F67F-40A8-B8BF-2E76DD2F9091\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:exim:exim:4.75:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"5854CAF2-1587-4B91-9F9B-E2C57C22C426\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:exim:exim:4.76:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"24D504C3-139D-4627-BD72-B6B46B360CE6\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:exim:exim:4.77:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"FF796BE5-380B-4DBF-A4FF-4CDF98B69C97\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:exim:exim:4.80:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"6526E201-30CC-4C12-B2B4-06EBA663D39F\"}]}]}],\"references\":[{\"url\":\"http://lists.fedoraproject.org/pipermail/package-announce/2012-November/091664.html\",\"source\":\"cve@mitre.org\"},{\"url\":\"http://lists.fedoraproject.org/pipermail/package-announce/2012-October/090900.html\",\"source\":\"cve@mitre.org\"},{\"url\":\"http://lists.fedoraproject.org/pipermail/package-announce/2012-October/090963.html\",\"source\":\"cve@mitre.org\"},{\"url\":\"http://lists.opensuse.org/opensuse-security-announce/2012-10/msg00018.html\",\"source\":\"cve@mitre.org\"},{\"url\":\"http://osvdb.org/86616\",\"source\":\"cve@mitre.org\"},{\"url\":\"http://secunia.com/advisories/51098\",\"source\":\"cve@mitre.org\",\"tags\":[\"Vendor 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  }
}


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Sightings

Author Source Type Date

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.