CVE-2016-4449 (GCVE-0-2016-4449)

Vulnerability from cvelistv5 – Published: 2016-06-09 16:00 – Updated: 2024-08-06 00:32
VLAI?
Summary
XML external entity (XXE) vulnerability in the xmlStringLenDecodeEntities function in parser.c in libxml2 before 2.9.4, when not in validating mode, allows context-dependent attackers to read arbitrary files or cause a denial of service (resource consumption) via unspecified vectors.
Severity ?
No CVSS data available.
CWE
  • n/a
Assigner
References
http://www.oracle.com/technetwork/topics/security… x_refsource_CONFIRM
https://support.cybozu.com/ja-jp/article/9735 x_refsource_CONFIRM
https://kc.mcafee.com/corporate/index?page=conten… x_refsource_CONFIRM
http://www.slackware.com/security/viewer.php?l=sl… vendor-advisoryx_refsource_SLACKWARE
http://www.oracle.com/technetwork/security-adviso… x_refsource_CONFIRM
http://jvn.jp/en/jp/JVN17535578/index.html third-party-advisoryx_refsource_JVN
https://access.redhat.com/errata/RHSA-2016:1292 vendor-advisoryx_refsource_REDHAT
http://www.openwall.com/lists/oss-security/2016/05/25/2 mailing-listx_refsource_MLIST
https://www.debian.org/security/2016/dsa-3593 vendor-advisoryx_refsource_DEBIAN
http://lists.apple.com/archives/security-announce… vendor-advisoryx_refsource_APPLE
http://lists.apple.com/archives/security-announce… vendor-advisoryx_refsource_APPLE
http://lists.apple.com/archives/security-announce… vendor-advisoryx_refsource_APPLE
http://xmlsoft.org/news.html x_refsource_CONFIRM
https://support.apple.com/HT206901 x_refsource_CONFIRM
http://www.ubuntu.com/usn/USN-2994-1 vendor-advisoryx_refsource_UBUNTU
http://www.oracle.com/technetwork/topics/security… x_refsource_CONFIRM
http://lists.apple.com/archives/security-announce… vendor-advisoryx_refsource_APPLE
http://jvndb.jvn.jp/en/contents/2017/JVNDB-2017-0… third-party-advisoryx_refsource_JVNDB
http://lists.apple.com/archives/security-announce… vendor-advisoryx_refsource_APPLE
https://www.tenable.com/security/tns-2016-18 x_refsource_CONFIRM
http://www.securityfocus.com/bid/90865 vdb-entryx_refsource_BID
https://git.gnome.org/browse/libxml2/commit/?id=b… x_refsource_CONFIRM
http://rhn.redhat.com/errata/RHSA-2016-2957.html vendor-advisoryx_refsource_REDHAT
https://support.apple.com/HT206905 x_refsource_CONFIRM
http://www.securitytracker.com/id/1036348 vdb-entryx_refsource_SECTRACK
https://support.apple.com/HT206903 x_refsource_CONFIRM
https://support.apple.com/HT206902 x_refsource_CONFIRM
https://support.apple.com/HT206904 x_refsource_CONFIRM
https://h20566.www2.hpe.com/portal/site/hpsc/publ… x_refsource_CONFIRM
https://support.apple.com/HT206899 x_refsource_CONFIRM
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      "sourceIdentifier": "secalert@redhat.com",
      "vulnStatus": "Modified",
      "weaknesses": "[{\"source\": \"nvd@nist.gov\", \"type\": \"Primary\", \"description\": [{\"lang\": \"en\", \"value\": \"CWE-20\"}]}]"
    },
    "nvd": "{\"cve\":{\"id\":\"CVE-2016-4449\",\"sourceIdentifier\":\"secalert@redhat.com\",\"published\":\"2016-06-09T16:59:07.800\",\"lastModified\":\"2025-04-12T10:46:40.837\",\"vulnStatus\":\"Deferred\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"XML external entity (XXE) vulnerability in the xmlStringLenDecodeEntities function in parser.c in libxml2 before 2.9.4, when not in validating mode, allows context-dependent attackers to read arbitrary files or cause a denial of service (resource consumption) via unspecified vectors.\"},{\"lang\":\"es\",\"value\":\"Vulneravilidad de XML external entity (XXE) en la funci\u00f3n xmlStringLenDecodeEntities en parser.c en libxml2 en versiones anteriores a 2.9.4, cuando no est\u00e1 en modo de validaci\u00f3n, permite a atacantes dependientes del contexto leer archivos arbitrarios o provocar una denegaci\u00f3n del servicio (consumo de recursos) a trav\u00e9s de vectores no especificados.\"}],\"metrics\":{\"cvssMetricV30\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"3.0\",\"vectorString\":\"CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:H\",\"baseScore\":7.1,\"baseSeverity\":\"HIGH\",\"attackVector\":\"LOCAL\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"NONE\",\"userInteraction\":\"REQUIRED\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"HIGH\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":1.8,\"impactScore\":5.2}],\"cvssMetricV2\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"2.0\",\"vectorString\":\"AV:N/AC:M/Au:N/C:P/I:N/A:P\",\"baseScore\":5.8,\"accessVector\":\"NETWORK\",\"accessComplexity\":\"MEDIUM\",\"authentication\":\"NONE\",\"confidentialityImpact\":\"PARTIAL\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"PARTIAL\"},\"baseSeverity\":\"MEDIUM\",\"exploitabilityScore\":8.6,\"impactScore\":4.9,\"acInsufInfo\":false,\"obtainAllPrivilege\":false,\"obtainUserPrivilege\":false,\"obtainOtherPrivilege\":false,\"userInteractionRequired\":true}]},\"weaknesses\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-20\"}]}],\"configurations\":[{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"C11E6FB0-C8C0-4527-9AA0-CB9B316F8F43\"}]}]},{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:canonical:ubuntu_linux:12.04:*:*:*:lts:*:*:*\",\"matchCriteriaId\":\"B6B7CAD7-9D4E-4FDB-88E3-1E583210A01F\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:lts:*:*:*\",\"matchCriteriaId\":\"B5A6F2F3-4894-4392-8296-3B8DD2679084\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:canonical:ubuntu_linux:15.10:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"E88A537F-F4D0-46B9-9E37-965233C2A355\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:*\",\"matchCriteriaId\":\"F7016A2A-8365-4F1A-89A2-7A19F2BCAE5B\"}]}]},{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:xmlsoft:libxml2:*:*:*:*:*:*:*:*\",\"versionEndIncluding\":\"2.9.3\",\"matchCriteriaId\":\"8202643D-7EEC-42CC-B875-B0E4ED35D9B4\"}]}]}],\"references\":[{\"url\":\"http://jvn.jp/en/jp/JVN17535578/index.html\",\"source\":\"secalert@redhat.com\"},{\"url\":\"http://jvndb.jvn.jp/en/contents/2017/JVNDB-2017-000066.html\",\"source\":\"secalert@redhat.com\"},{\"url\":\"http://lists.apple.com/archives/security-announce/2016/Jul/msg00000.html\",\"source\":\"secalert@redhat.com\"},{\"url\":\"http://lists.apple.com/archives/security-announce/2016/Jul/msg00001.html\",\"source\":\"secalert@redhat.com\"},{\"url\":\"http://lists.apple.com/archives/security-announce/2016/Jul/msg00002.html\",\"source\":\"secalert@redhat.com\"},{\"url\":\"http://lists.apple.com/archives/security-announce/2016/Jul/msg00003.html\",\"source\":\"secalert@redhat.com\"},{\"url\":\"http://lists.apple.com/archives/security-announce/2016/Jul/msg00005.html\",\"source\":\"secalert@redhat.com\"},{\"url\":\"http://rhn.redhat.com/errata/RHSA-2016-2957.html\",\"source\":\"secalert@redhat.com\"},{\"url\":\"http://www.openwall.com/lists/oss-security/2016/05/25/2\",\"source\":\"secalert@redhat.com\"},{\"url\":\"http://www.oracle.com/technetwork/security-advisory/cpujan2018-3236628.html\",\"source\":\"secalert@redhat.com\"},{\"url\":\"http://www.oracle.com/technetwork/topics/security/bulletinjul2016-3090568.html\",\"source\":\"secalert@redhat.com\"},{\"url\":\"http://www.oracle.com/technetwork/topics/security/ovmbulletinjul2016-3090546.html\",\"source\":\"secalert@redhat.com\"},{\"url\":\"http://www.securityfocus.com/bid/90865\",\"source\":\"secalert@redhat.com\"},{\"url\":\"http://www.securitytracker.com/id/1036348\",\"source\":\"secalert@redhat.com\"},{\"url\":\"http://www.slackware.com/security/viewer.php?l=slackware-security\u0026y=2016\u0026m=slackware-security.404722\",\"source\":\"secalert@redhat.com\"},{\"url\":\"http://www.ubuntu.com/usn/USN-2994-1\",\"source\":\"secalert@redhat.com\"},{\"url\":\"http://xmlsoft.org/news.html\",\"source\":\"secalert@redhat.com\"},{\"url\":\"https://access.redhat.com/errata/RHSA-2016:1292\",\"source\":\"secalert@redhat.com\"},{\"url\":\"https://git.gnome.org/browse/libxml2/commit/?id=b1d34de46a11323fccffa9fadeb33be670d602f5\",\"source\":\"secalert@redhat.com\",\"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.