National Vulnerability Database

National Vulnerability Database

National Vulnerability
Database

CVE-2016-9318 Detail

Current Description

libxml2 2.9.4 and earlier, as used in XMLSec 1.2.23 and earlier and other products, does not offer a flag directly indicating that the current document may be read but other files may not be opened, which makes it easier for remote attackers to conduct XML External Entity (XXE) attacks via a crafted document.

Source:  MITRE
View Analysis Description

Impact

CVSS v3.0 Severity and Metrics:

Base Score: 7.8 HIGH
Vector: AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H (V3 legend)
Impact Score: 5.9
Exploitability Score: 1.8


Attack Vector (AV): Local
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): Required
Scope (S): Unchanged
Confidentiality (C): High
Integrity (I): High
Availability (A): High

CVSS v2.0 Severity and Metrics:

Base Score: 6.8 MEDIUM
Vector: (AV:N/AC:M/Au:N/C:P/I:P/A:P) (V2 legend)
Impact Subscore: 6.4
Exploitability Subscore: 8.6


Access Vector (AV): Network
Access Complexity (AC): Medium
Authentication (AU): None
Confidentiality (C): Partial
Integrity (I): Partial
Availability (A): Partial
Additional Information:
Victim must voluntarily interact with attack mechanism
Allows unauthorized disclosure of information
Allows unauthorized modification
Allows disruption of service

References to Advisories, Solutions, and Tools

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Hyperlink Resource
http://www.securityfocus.com/bid/94347 Third Party Advisory VDB Entry
https://bugzilla.gnome.org/show_bug.cgi?id=772726 Issue Tracking Patch Third Party Advisory VDB Entry
https://github.com/lsh123/xmlsec/issues/43 Exploit Patch Vendor Advisory
https://security.gentoo.org/glsa/201711-01
https://usn.ubuntu.com/3739-1/
https://usn.ubuntu.com/3739-2/

Technical Details

Vulnerability Type (View All)

  • Improper Restriction of XML External Entity Reference (CWE-611)

Known Affected Software Configurations Switch to CPE 2.2

Configuration 1 ( hide )
 cpe:2.3:a:xmlsoft:libxml2:*:*:*:*:*:*:*:*
     Show Matching CPE(s)
Up to (including)
2.9.4
Running on/with
 cpe:2.3:a:aleksey:xml_security_library:*:*:*:*:*:*:*:*
     Show Matching CPE(s)
Up to (including)
1.2.23


Change History

5 change records found - show changes

Quick Info

CVE Dictionary Entry:
CVE-2016-9318
NVD Published Date:
11/15/2016
NVD Last Modified:
08/15/2018