Parameter Entity Reference Vulnerability in libxml2 by GNOME
CVE-2017-16931

9.8CRITICAL

Key Information:

Vendor

Xmlsoft

Status
Libxml2
Vendor
CVE Published:
23 November 2017

What is CVE-2017-16931?

A vulnerability exists in libxml2 that arises from improper handling of parameter-entity references. Specifically, the issue occurs in the parser.c file before version 2.9.5, where the NEXTL macro incorrectly calls the xmlParserHandlePEReference function for '%' characters in a Document Type Definition (DTD) name. This flaw may have significant implications for applications that rely on xml parsing, potentially leading to unauthorized access or manipulation of data.

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References

https://lists.debian.org/debian-lts-announce/2017/11/msg0...
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

CVSS V3.1

Score:
9.8
Severity:
CRITICAL
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

JSON
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