CVE-2017-16931

HIGH

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.

References

http://xmlsoft.org/news.html

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

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

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

Details

Source: MITRE

Published: 2017-11-23

Updated: 2018-02-04

Type: CWE-119

Risk Information

CVSS v2.0

Base Score: 7.5

Vector: (AV:N/AC:L/Au:N/C:P/I:P/A:P)

Impact Score: 6.4

Exploitability Score: 10

Severity: HIGH

CVSS v3.0

Base Score: 9.8

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

Impact Score: 5.9

Exploitability Score: 3.9

Severity: CRITICAL