Vulnerability-Lookup

ubuntu-cve-2017-16931

Vulnerability from osv_ubuntu

Published

2017-11-23 21:29

Modified

2025-07-16 04:53

Summary

Details

parser.c in libxml2 before 2.9.5 mishandles parameter-entity references because the NEXTL macro calls the xmlParserHandlePEReference function in the case of a '%' character in a DTD name.

Severity

9.8 (Critical)


                    
                      CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

N/A (UNKNOWN)


                    
                      medium

References

URL

Type

	https://ubuntu.com/security/CVE-2017-16931	REPORT
	http://xmlsoft.org/news.html	REPORT
	https://www.cve.org/CVERecord?id=CVE-2017-16931	REPORT

JSON

To clipboard

{
  "affected": [
    {
      "ecosystem_specific": {
        "availability": "No subscription required",
        "binaries": [
          {
            "binary_name": "libxml2",
            "binary_version": "2.9.1+dfsg1-3ubuntu4.10"
          },
          {
            "binary_name": "libxml2-dbg",
            "binary_version": "2.9.1+dfsg1-3ubuntu4.10"
          },
          {
            "binary_name": "libxml2-dbgsym",
            "binary_version": "2.9.1+dfsg1-3ubuntu4.10"
          },
          {
            "binary_name": "libxml2-dev",
            "binary_version": "2.9.1+dfsg1-3ubuntu4.10"
          },
          {
            "binary_name": "libxml2-dev-dbgsym",
            "binary_version": "2.9.1+dfsg1-3ubuntu4.10"
          },
          {
            "binary_name": "libxml2-doc",
            "binary_version": "2.9.1+dfsg1-3ubuntu4.10"
          },
          {
            "binary_name": "libxml2-udeb",
            "binary_version": "2.9.1+dfsg1-3ubuntu4.10"
          },
          {
            "binary_name": "libxml2-udeb-dbgsym",
            "binary_version": "2.9.1+dfsg1-3ubuntu4.10"
          },
          {
            "binary_name": "libxml2-utils",
            "binary_version": "2.9.1+dfsg1-3ubuntu4.10"
          },
          {
            "binary_name": "libxml2-utils-dbg",
            "binary_version": "2.9.1+dfsg1-3ubuntu4.10"
          },
          {
            "binary_name": "libxml2-utils-dbgsym",
            "binary_version": "2.9.1+dfsg1-3ubuntu4.10"
          },
          {
            "binary_name": "python-libxml2",
            "binary_version": "2.9.1+dfsg1-3ubuntu4.10"
          },
          {
            "binary_name": "python-libxml2-dbg",
            "binary_version": "2.9.1+dfsg1-3ubuntu4.10"
          },
          {
            "binary_name": "python-libxml2-dbgsym",
            "binary_version": "2.9.1+dfsg1-3ubuntu4.10"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:14.04:LTS",
        "name": "libxml2",
        "purl": "pkg:deb/ubuntu/libxml2@2.9.1+dfsg1-3ubuntu4.10?arch=source\u0026distro=trusty"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "2.9.1+dfsg1-3ubuntu4.10"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "2.9.1+dfsg1-3ubuntu2",
        "2.9.1+dfsg1-3ubuntu3",
        "2.9.1+dfsg1-3ubuntu4",
        "2.9.1+dfsg1-3ubuntu4.1",
        "2.9.1+dfsg1-3ubuntu4.2",
        "2.9.1+dfsg1-3ubuntu4.3",
        "2.9.1+dfsg1-3ubuntu4.4",
        "2.9.1+dfsg1-3ubuntu4.5",
        "2.9.1+dfsg1-3ubuntu4.6",
        "2.9.1+dfsg1-3ubuntu4.7",
        "2.9.1+dfsg1-3ubuntu4.8",
        "2.9.1+dfsg1-3ubuntu4.9"
      ]
    },
    {
      "ecosystem_specific": {
        "availability": "No subscription required",
        "binaries": [
          {
            "binary_name": "libxml2",
            "binary_version": "2.9.3+dfsg1-1ubuntu0.3"
          },
          {
            "binary_name": "libxml2-dbg",
            "binary_version": "2.9.3+dfsg1-1ubuntu0.3"
          },
          {
            "binary_name": "libxml2-dbgsym",
            "binary_version": "2.9.3+dfsg1-1ubuntu0.3"
          },
          {
            "binary_name": "libxml2-dev",
            "binary_version": "2.9.3+dfsg1-1ubuntu0.3"
          },
          {
            "binary_name": "libxml2-dev-dbgsym",
            "binary_version": "2.9.3+dfsg1-1ubuntu0.3"
          },
          {
            "binary_name": "libxml2-doc",
            "binary_version": "2.9.3+dfsg1-1ubuntu0.3"
          },
          {
            "binary_name": "libxml2-udeb",
            "binary_version": "2.9.3+dfsg1-1ubuntu0.3"
          },
          {
            "binary_name": "libxml2-udeb-dbgsym",
            "binary_version": "2.9.3+dfsg1-1ubuntu0.3"
          },
          {
            "binary_name": "libxml2-utils",
            "binary_version": "2.9.3+dfsg1-1ubuntu0.3"
          },
          {
            "binary_name": "libxml2-utils-dbg",
            "binary_version": "2.9.3+dfsg1-1ubuntu0.3"
          },
          {
            "binary_name": "libxml2-utils-dbgsym",
            "binary_version": "2.9.3+dfsg1-1ubuntu0.3"
          },
          {
            "binary_name": "python-libxml2",
            "binary_version": "2.9.3+dfsg1-1ubuntu0.3"
          },
          {
            "binary_name": "python-libxml2-dbg",
            "binary_version": "2.9.3+dfsg1-1ubuntu0.3"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:16.04:LTS",
        "name": "libxml2",
        "purl": "pkg:deb/ubuntu/libxml2@2.9.3+dfsg1-1ubuntu0.3?arch=source\u0026distro=xenial"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "2.9.3+dfsg1-1ubuntu0.3"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "2.9.2+zdfsg1-4",
        "2.9.2+zdfsg1-4ubuntu1",
        "2.9.2+zdfsg1-4ubuntu2",
        "2.9.2+zdfsg1-4ubuntu3",
        "2.9.3+dfsg1-1",
        "2.9.3+dfsg1-1ubuntu0.1",
        "2.9.3+dfsg1-1ubuntu0.2"
      ]
    }
  ],
  "aliases": [],
  "details": "parser.c in libxml2 before 2.9.5 mishandles parameter-entity references because the NEXTL macro calls the xmlParserHandlePEReference function in the case of a \u0027%\u0027 character in a DTD name.",
  "id": "UBUNTU-CVE-2017-16931",
  "modified": "2025-07-16T04:53:09Z",
  "published": "2017-11-23T21:29:00Z",
  "references": [
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2017-16931"
    },
    {
      "type": "REPORT",
      "url": "http://xmlsoft.org/news.html"
    },
    {
      "type": "REPORT",
      "url": "https://www.cve.org/CVERecord?id=CVE-2017-16931"
    }
  ],
  "related": [],
  "schema_version": "1.7.0",
  "severity": [
    {
      "score": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    },
    {
      "score": "medium",
      "type": "Ubuntu"
    }
  ],
  "upstream": [
    "CVE-2017-16931"
  ],
  "withdrawn": "2025-07-18T16:44:15Z"
}

CVE-2017-16931 (GCVE-0-2017-16931)

Vulnerability from cvelistv5 – Published: 2017-11-23 21:00 – Updated: 2024-08-05 20:43

Summary

parser.c in libxml2 before 2.9.5 mishandles parameter-entity references because the NEXTL macro calls the xmlParserHandlePEReference function in the case of a '%' character in a DTD name.

Severity

No CVSS data available.

CWE

Assigner

mitre

References

5 references

URL	Tags
https://lists.debian.org/debian-lts-announce/2017…	mailing-listx_refsource_MLIST
https://www.oracle.com//security-alerts/cpujul2021.html	x_refsource_MISC
https://bugzilla.gnome.org/show_bug.cgi?id=766956	x_refsource_CONFIRM
http://xmlsoft.org/news.html	x_refsource_CONFIRM
https://github.com/GNOME/libxml2/commit/e26630548…	x_refsource_CONFIRM

Date Public

2017-11-23 00:00

Show details on NVD website

JSON

To clipboard

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        },
        "references": [
          {
            "name": "[debian-lts-announce] 20171130 [SECURITY] [DLA 1194-1] libxml2 security update",
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              "mailing-list",
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            "url": "https://lists.debian.org/debian-lts-announce/2017/11/msg00041.html"
          },
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            "url": "https://www.oracle.com//security-alerts/cpujul2021.html"
          },
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            "url": "https://bugzilla.gnome.org/show_bug.cgi?id=766956"
          },
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            ],
            "url": "http://xmlsoft.org/news.html"
          },
          {
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            ],
            "url": "https://github.com/GNOME/libxml2/commit/e26630548e7d138d2c560844c43820b6767251e3"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
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        {
          "lang": "en",
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      "problemTypes": [
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      "providerMetadata": {
        "dateUpdated": "2021-07-20T22:53:04.000Z",
        "orgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
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          "url": "https://bugzilla.gnome.org/show_bug.cgi?id=766956"
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          "url": "http://xmlsoft.org/news.html"
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}

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.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.

Action not permitted

ubuntu-cve-2017-16931

Vulnerability from osv_ubuntu

CVE-2017-16931 (GCVE-0-2017-16931)

Tags

Sightings

Nomenclature