National Vulnerability Database

National Vulnerability Database

National Vulnerability
Database

CVE-2017-16931 Detail

Current 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.

Source:  MITRE      Last Modified:  11/23/2017      View Analysis Description

Quick Info

CVE Dictionary Entry:
CVE-2017-16931
Original release date:
11/23/2017
Last revised:
02/03/2018
Source:
US-CERT/NIST

Impact

CVSS Severity (version 3.0):
CVSS v3 Base Score:
9.8 Critical
Vector:
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H (legend)
Impact Score:
5.9
Exploitability Score:
3.9
CVSS Version 3 Metrics:
Attack Vector (AV):
Network
Attack Complexity (AC):
Low
Privileges Required (PR):
None
User Interaction (UI):
None
Scope (S):
Unchanged
Confidentiality (C):
High
Integrity (I):
High
Availability (A):
High
CVSS Severity (version 2.0):
CVSS v2 Base Score:
7.5 HIGH
Vector:
(AV:N/AC:L/Au:N/C:P/I:P/A:P) (legend)
Impact Subscore:
6.4
Exploitability Subscore:
10.0
CVSS Version 2 Metrics:
Access Vector:
Network exploitable
Access Complexity:
Low
Authentication:
Not required to exploit
Impact Type:
Allows unauthorized disclosure of information; Allows unauthorized modification; Allows disruption of service

References to Advisories, Solutions, and Tools

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Hyperlink Resource Type Source Name
http://xmlsoft.org/news.html Release Notes; Vendor Advisory External Source CONFIRM http://xmlsoft.org/news.html
https://bugzilla.gnome.org/show_bug.cgi?id=766956 Permissions Required External Source CONFIRM https://bugzilla.gnome.org/show_bug.cgi?id=766956
https://github.com/GNOME/libxml2/commit/e26630548e7d138d2c560844c43820b6767251e3 Patch; Third Party Advisory External Source CONFIRM https://github.com/GNOME/libxml2/commit/e26630548e7d138d2c560844c43820b6767251e3
https://lists.debian.org/debian-lts-announce/2017/11/msg00041.html External Source MLIST [debian-lts-announce] 20171130 [SECURITY] [DLA 1194-1] libxml2 security update

Technical Details

Vulnerability Type (View All)

Change History 2 change records found - show changes