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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
7.1 (High)
CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:H
CWE
  • n/a
Assigner
References
URL Tags
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
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http://www.securityfocus.com/bid/90865 vdb-entryx_refsource_BID
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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
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https://support.apple.com/HT206904 x_refsource_CONFIRM
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Date Public
2016-05-23 00:00
Show details on NVD website
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            "url": "http://www.ubuntu.com/usn/USN-2994-1"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "url": "http://xmlsoft.org/news.html"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "url": "https://access.redhat.com/errata/RHSA-2016:1292"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "tags": [
              "Vendor Advisory"
            ],
            "url": "https://git.gnome.org/browse/libxml2/commit/?id=b1d34de46a11323fccffa9fadeb33be670d602f5"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "url": "https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05194709"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "url": "https://kc.mcafee.com/corporate/index?page=content\u0026id=SB10170"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "url": "https://support.apple.com/HT206899"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "url": "https://support.apple.com/HT206901"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "url": "https://support.apple.com/HT206902"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "url": "https://support.apple.com/HT206903"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "url": "https://support.apple.com/HT206904"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "url": "https://support.apple.com/HT206905"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "url": "https://support.cybozu.com/ja-jp/article/9735"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "url": "https://www.debian.org/security/2016/dsa-3593"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "url": "https://www.tenable.com/security/tns-2016-18"
          }
        ],
        "sourceIdentifier": "secalert@redhat.com",
        "vulnStatus": "Modified",
        "weaknesses": [
          {
            "description": [
              {
                "lang": "en",
                "value": "CWE-20"
              }
            ],
            "source": "nvd@nist.gov",
            "type": "Primary"
          }
        ]
      }
    },
    "redhat_vex": {
      "aggregate_severity": "Moderate",
      "current_release_date": "2026-06-28T11:09:27+00:00",
      "cve": "CVE-2016-4449",
      "id": "CVE-2016-4449",
      "initial_release_date": "2016-05-23T00:00:00+00:00",
      "product_status:fixed": "145",
      "product_status:known_affected": "2",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "libxml2: Inappropriate fetch of entities content",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2016/cve-2016-4449.json",
      "version": "3"
    },
    "suse_vex": {
      "aggregate_severity": "moderate",
      "current_release_date": "2026-07-26T23:46:01Z",
      "cve": "CVE-2016-4449",
      "id": "CVE-2016-4449",
      "initial_release_date": "2023-02-15T05:02:54Z",
      "product_status:known_affected": "1",
      "product_status:recommended": "116",
      "source": "SUSE CSAF VEX",
      "status": "interim",
      "title": "SUSE CVE CVE-2016-4449",
      "url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2016-4449.json",
      "version": "11"
    }
  }
}



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Tags
Taxonomy of the tags.





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.


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.