CVE-2014-4344 (GCVE-0-2014-4344)

Vulnerability from cvelistv5 – Published: 2014-08-14 01:00 – Updated: 2024-08-06 11:12
VLAI
Summary
The acc_ctx_cont function in the SPNEGO acceptor in lib/gssapi/spnego/spnego_mech.c in MIT Kerberos 5 (aka krb5) 1.5.x through 1.12.x before 1.12.2 allows remote attackers to cause a denial of service (NULL pointer dereference and application crash) via an empty continuation token at a certain point during a SPNEGO negotiation.
Severity
No CVSS data available.
CWE
  • n/a
Assigner
References
URL Tags
https://github.com/krb5/krb5/commit/a7886f0ed1277… x_refsource_CONFIRM
https://bugzilla.redhat.com/show_bug.cgi?id=1121877 x_refsource_CONFIRM
https://github.com/krb5/krb5/commit/524688ce87a15… x_refsource_CONFIRM
https://exchange.xforce.ibmcloud.com/vulnerabilit… vdb-entryx_refsource_XF
http://aix.software.ibm.com/aix/efixes/security/n… x_refsource_CONFIRM
http://rhn.redhat.com/errata/RHSA-2015-0439.html vendor-advisoryx_refsource_REDHAT
http://secunia.com/advisories/60448 third-party-advisoryx_refsource_SECUNIA
http://support.f5.com/kb/en-us/solutions/public/1… x_refsource_CONFIRM
http://lists.fedoraproject.org/pipermail/package-… vendor-advisoryx_refsource_FEDORA
http://secunia.com/advisories/61051 third-party-advisoryx_refsource_SECUNIA
http://www.debian.org/security/2014/dsa-3000 vendor-advisoryx_refsource_DEBIAN
http://krbdev.mit.edu/rt/Ticket/Display.html?id=7970 x_refsource_CONFIRM
http://www.mandriva.com/security/advisories?name=… vendor-advisoryx_refsource_MANDRIVA
http://www.securityfocus.com/bid/69160 vdb-entryx_refsource_BID
http://www.osvdb.org/109389 vdb-entryx_refsource_OSVDB
http://www.securitytracker.com/id/1030706 vdb-entryx_refsource_SECTRACK
http://secunia.com/advisories/60082 third-party-advisoryx_refsource_SECUNIA
http://advisories.mageia.org/MGASA-2014-0345.html x_refsource_CONFIRM
http://secunia.com/advisories/59102 third-party-advisoryx_refsource_SECUNIA
Date Public
2014-07-21 00:00
Show details on NVD website
To clipboard 

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      "descriptions": "[{\"lang\": \"en\", \"value\": \"The acc_ctx_cont function in the SPNEGO acceptor in lib/gssapi/spnego/spnego_mech.c in MIT Kerberos 5 (aka krb5) 1.5.x through 1.12.x before 1.12.2 allows remote attackers to cause a denial of service (NULL pointer dereference and application crash) via an empty continuation token at a certain point during a SPNEGO negotiation.\"}, {\"lang\": \"es\", \"value\": \"La funci\\u00f3n acc_ctx_cont en el aceptador SPNEGO en lib/gssapi/spnego/spnego_mech.c en MIT Kerberos 5 (tambi\\u00e9n conocido como krb5) 1.5.x hasta 1.12.x anterior a 1.12.2 permite a atacantes remotos causar una denegaci\\u00f3n de servicio (referencia a puntero nulo y ca\\u00edda de la aplicaci\\u00f3n) a trav\\u00e9s de un token de continuaci\\u00f3n vac\\u00edo en cierto momento durante una negociaci\\u00f3n SPNEGO.\"}]",
      "id": "CVE-2014-4344",
      "lastModified": "2024-11-21T02:10:00.353",
      "metrics": "{\"cvssMetricV2\": [{\"source\": \"nvd@nist.gov\", \"type\": \"Primary\", \"cvssData\": {\"version\": \"2.0\", \"vectorString\": \"AV:N/AC:L/Au:N/C:N/I:N/A:C\", \"baseScore\": 7.8, \"accessVector\": \"NETWORK\", \"accessComplexity\": \"LOW\", \"authentication\": \"NONE\", \"confidentialityImpact\": \"NONE\", \"integrityImpact\": \"NONE\", \"availabilityImpact\": \"COMPLETE\"}, \"baseSeverity\": \"HIGH\", \"exploitabilityScore\": 10.0, \"impactScore\": 6.9, \"acInsufInfo\": false, \"obtainAllPrivilege\": false, \"obtainUserPrivilege\": false, \"obtainOtherPrivilege\": false, \"userInteractionRequired\": false}]}",
      "published": "2014-08-14T05:01:49.943",
      "references": "[{\"url\": \"http://advisories.mageia.org/MGASA-2014-0345.html\", \"source\": \"cve@mitre.org\"}, {\"url\": \"http://aix.software.ibm.com/aix/efixes/security/nas_advisory1.asc\", \"source\": \"cve@mitre.org\"}, {\"url\": \"http://krbdev.mit.edu/rt/Ticket/Display.html?id=7970\", \"source\": \"cve@mitre.org\", \"tags\": [\"Issue Tracking\", \"Third Party Advisory\"]}, {\"url\": \"http://lists.fedoraproject.org/pipermail/package-announce/2014-August/136360.html\", \"source\": \"cve@mitre.org\"}, {\"url\": \"http://rhn.redhat.com/errata/RHSA-2015-0439.html\", \"source\": \"cve@mitre.org\", \"tags\": [\"Third Party Advisory\"]}, {\"url\": \"http://secunia.com/advisories/59102\", \"source\": \"cve@mitre.org\"}, {\"url\": \"http://secunia.com/advisories/60082\", \"source\": \"cve@mitre.org\"}, {\"url\": \"http://secunia.com/advisories/60448\", \"source\": \"cve@mitre.org\"}, {\"url\": \"http://secunia.com/advisories/61051\", \"source\": \"cve@mitre.org\"}, {\"url\": \"http://support.f5.com/kb/en-us/solutions/public/15000/500/sol15561.html\", \"source\": \"cve@mitre.org\"}, {\"url\": \"http://www.debian.org/security/2014/dsa-3000\", \"source\": \"cve@mitre.org\", \"tags\": [\"Third Party Advisory\"]}, {\"url\": \"http://www.mandriva.com/security/advisories?name=MDVSA-2014:165\", \"source\": \"cve@mitre.org\"}, {\"url\": \"http://www.osvdb.org/109389\", \"source\": \"cve@mitre.org\"}, {\"url\": \"http://www.securityfocus.com/bid/69160\", \"source\": \"cve@mitre.org\"}, {\"url\": \"http://www.securitytracker.com/id/1030706\", \"source\": \"cve@mitre.org\"}, {\"url\": \"https://bugzilla.redhat.com/show_bug.cgi?id=1121877\", \"source\": \"cve@mitre.org\"}, {\"url\": \"https://exchange.xforce.ibmcloud.com/vulnerabilities/95210\", \"source\": \"cve@mitre.org\"}, {\"url\": \"https://github.com/krb5/krb5/commit/524688ce87a15fc75f87efc8c039ba4c7d5c197b\", \"source\": \"cve@mitre.org\"}, {\"url\": \"https://github.com/krb5/krb5/commit/a7886f0ed1277c69142b14a2c6629175a6331edc\", \"source\": \"cve@mitre.org\", \"tags\": [\"Issue Tracking\", \"Patch\", \"Third Party Advisory\"]}, {\"url\": \"http://advisories.mageia.org/MGASA-2014-0345.html\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\"}, {\"url\": \"http://aix.software.ibm.com/aix/efixes/security/nas_advisory1.asc\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\"}, {\"url\": \"http://krbdev.mit.edu/rt/Ticket/Display.html?id=7970\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\", \"tags\": [\"Issue Tracking\", \"Third Party Advisory\"]}, {\"url\": \"http://lists.fedoraproject.org/pipermail/package-announce/2014-August/136360.html\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\"}, {\"url\": \"http://rhn.redhat.com/errata/RHSA-2015-0439.html\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\", \"tags\": [\"Third Party Advisory\"]}, {\"url\": \"http://secunia.com/advisories/59102\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\"}, {\"url\": \"http://secunia.com/advisories/60082\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\"}, {\"url\": \"http://secunia.com/advisories/60448\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\"}, {\"url\": \"http://secunia.com/advisories/61051\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\"}, {\"url\": \"http://support.f5.com/kb/en-us/solutions/public/15000/500/sol15561.html\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\"}, {\"url\": \"http://www.debian.org/security/2014/dsa-3000\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\", \"tags\": [\"Third Party Advisory\"]}, {\"url\": \"http://www.mandriva.com/security/advisories?name=MDVSA-2014:165\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\"}, {\"url\": \"http://www.osvdb.org/109389\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\"}, {\"url\": \"http://www.securityfocus.com/bid/69160\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\"}, {\"url\": \"http://www.securitytracker.com/id/1030706\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\"}, {\"url\": \"https://bugzilla.redhat.com/show_bug.cgi?id=1121877\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\"}, {\"url\": \"https://exchange.xforce.ibmcloud.com/vulnerabilities/95210\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\"}, {\"url\": \"https://github.com/krb5/krb5/commit/524688ce87a15fc75f87efc8c039ba4c7d5c197b\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\"}, {\"url\": \"https://github.com/krb5/krb5/commit/a7886f0ed1277c69142b14a2c6629175a6331edc\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\", \"tags\": [\"Issue Tracking\", \"Patch\", \"Third Party Advisory\"]}]",
      "sourceIdentifier": "cve@mitre.org",
      "vulnStatus": "Modified",
      "weaknesses": "[{\"source\": \"nvd@nist.gov\", \"type\": \"Primary\", \"description\": [{\"lang\": \"en\", \"value\": \"CWE-476\"}]}]"
    },
    "nvd": "{\"cve\":{\"id\":\"CVE-2014-4344\",\"sourceIdentifier\":\"cve@mitre.org\",\"published\":\"2014-08-14T05:01:49.943\",\"lastModified\":\"2026-05-06T22:30:45.220\",\"vulnStatus\":\"Modified\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"The acc_ctx_cont function in the SPNEGO acceptor in lib/gssapi/spnego/spnego_mech.c in MIT Kerberos 5 (aka krb5) 1.5.x through 1.12.x before 1.12.2 allows remote attackers to cause a denial of service (NULL pointer dereference and application crash) via an empty continuation token at a certain point during a SPNEGO negotiation.\"},{\"lang\":\"es\",\"value\":\"La funci\u00f3n acc_ctx_cont en el aceptador SPNEGO en lib/gssapi/spnego/spnego_mech.c en MIT Kerberos 5 (tambi\u00e9n conocido como krb5) 1.5.x hasta 1.12.x anterior a 1.12.2 permite a atacantes remotos causar una denegaci\u00f3n de servicio (referencia a puntero nulo y ca\u00edda de la aplicaci\u00f3n) a trav\u00e9s de un token de continuaci\u00f3n vac\u00edo en cierto momento durante una negociaci\u00f3n SPNEGO.\"}],\"metrics\":{\"cvssMetricV2\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"2.0\",\"vectorString\":\"AV:N/AC:L/Au:N/C:N/I:N/A:C\",\"baseScore\":7.8,\"accessVector\":\"NETWORK\",\"accessComplexity\":\"LOW\",\"authentication\":\"NONE\",\"confidentialityImpact\":\"NONE\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"COMPLETE\"},\"baseSeverity\":\"HIGH\",\"exploitabilityScore\":10.0,\"impactScore\":6.9,\"acInsufInfo\":false,\"obtainAllPrivilege\":false,\"obtainUserPrivilege\":false,\"obtainOtherPrivilege\":false,\"userInteractionRequired\":false}]},\"weaknesses\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-476\"}]}],\"configurations\":[{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:debian:debian_linux:7.0:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"16F59A04-14CF-49E2-9973-645477EA09DA\"}]}]},{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:redhat:enterprise_linux_desktop:7.0:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"33C068A4-3780-4EAB-A937-6082DF847564\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:redhat:enterprise_linux_hpc_node:7.0:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"3C84489B-B08C-4854-8A12-D01B6E45CF79\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:redhat:enterprise_linux_server:7.0:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"51EF4996-72F4-4FA4-814F-F5991E7A8318\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:redhat:enterprise_linux_workstation:7.0:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"825ECE2D-E232-46E0-A047-074B34DB1E97\"}]}]},{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:mit:kerberos_5:1.10:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"FC504264-A9E9-4433-B7AA-6D5015A93FF3\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:mit:kerberos_5:1.10.1:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"77FA352F-520C-4C05-AD52-FC8586DB16B1\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:mit:kerberos_5:1.10.2:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"9FFB18F7-CB08-4AE4-9DEC-55D047819A0A\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:mit:kerberos_5:1.10.3:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"637E858A-7C16-490C-99A8-F46440E5F504\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:mit:kerberos_5:1.10.4:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"22840B84-2EA4-4E96-A8D8-154AAEADB806\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:mit:kerberos_5:1.11:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"2D554BDC-CD7D-4572-B1E8-5F627F2C5916\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:mit:kerberos_5:1.11.1:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"65BCD38A-33AD-4FD7-AF5B-8470B24C4139\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:mit:kerberos_5:1.11.2:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"E11F9209-799A-428B-9513-DBD0F19C7BF4\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:mit:kerberos_5:1.11.3:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"1DA40FAA-B858-4282-8438-247E99FBB002\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:mit:kerberos_5:1.11.4:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"65795542-D886-46C4-8ECB-4630078DF66A\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:mit:kerberos_5:1.11.5:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"D0A4C436-C3D7-469E-8895-8EEC9569EE86\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:mit:kerberos_5:1.12:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"79A9FAE9-7219-4D6A-9E94-FFE20223537D\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:mit:kerberos_5:1.12.1:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"EA68BC90-FCFC-4C9B-8574-9029DB2358E9\"}]}]}],\"references\":[{\"url\":\"http://advisories.mageia.org/MGASA-2014-0345.html\",\"source\":\"cve@mitre.org\"},{\"url\":\"http://aix.software.ibm.com/aix/efixes/security/nas_advisory1.asc\",\"source\":\"cve@mitre.org\"},{\"url\":\"http://krbdev.mit.edu/rt/Ticket/Display.html?id=7970\",\"source\":\"cve@mitre.org\",\"tags\":[\"Issue 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Tracking\",\"Patch\",\"Third Party Advisory\"]}]}}"
  }
}


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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

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.