CVE-2017-16931

Published: Nov 23, 2017Modified: May 13, 2026

9.8

Vector

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

Exploitability: 3.9 / Impact: 5.9

Source: NVD

Description

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.

Affected (1)

Products: Xmlsoft: Libxml2

Xmlsoft

1 product

Libxml2

Configuration A

1 vulnerable

Vulnerable Software	Affected Versions
Xmlsoft Libxml2	Up to 2.9.4

Related CWEs

CWE-119

Improper Restriction of Operations within the Bounds of a Memory Buffer

The product performs operations on a memory buffer, but it reads from or writes to a memory location outside the buffer's intended boundary. This may result in read or write operations on unexpected memory locations that could be linked to other variables, data structures, or internal program data.

References (10)

http://xmlsoft.org/news.html

Source: cve@mitre.org

Release NotesVendor Advisory

https://bugzilla.gnome.org/show_bug.cgi?id=766956

Source: cve@mitre.org

Permissions Required

https://github.com/GNOME/libxml2/commit/e26630548e7d138d2c560844c43820b6767251e3

Source: cve@mitre.org

PatchThird Party Advisory

https://lists.debian.org/debian-lts-announce/2017/11/msg00041.html

Source: cve@mitre.org

https://www.oracle.com//security-alerts/cpujul2021.html

Source: cve@mitre.org

http://xmlsoft.org/news.html