Instituto Nacional de ciberseguridad. Sección Incibe
Instituto Nacional de Ciberseguridad. Sección INCIBE-CERT

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CVE-2013-0339

Severity CVSS v4.0:
Pending analysis
Type:
CWE-264 Permissions, Privileges, and Access Control
Publication date:
21/01/2014
Last modified:
11/04/2025

Description

libxml2 through 2.9.1 does not properly handle external entities expansion unless an application developer uses the xmlSAX2ResolveEntity or xmlSetExternalEntityLoader function, which allows remote attackers to cause a denial of service (resource consumption), send HTTP requests to intranet servers, or read arbitrary files via a crafted XML document, aka an XML External Entity (XXE) issue. NOTE: it could be argued that because libxml2 already provides the ability to disable external entity expansion, the responsibility for resolving this issue lies with application developers; according to this argument, this entry should be REJECTed and each affected application would need its own CVE.

Impact

Vector 2.0
AV:N/AC:M/Au:N/C:P/I:P/A:P CVSS v2.0 Severity and Metrics:

Base Score: 6.80 MEDIUM
Vector: AV:N/AC:M/Au:N/C:P/I:P/A:P

Attack Vector (AV): Network
Attack Complexity (AC): Medium
Authentication (Au): None
Confidentiality (C): Physical
Integrity (I): Physical
Availability (A): Physical

Base Score 2.0
6.80
Severity 2.0
MEDIUM

Vulnerable products and versions

CPE From Up to
cpe:2.3:a:xmlsoft:libxml2:*:*:*:*:*:*:*:* 2.9.1 (including)
cpe:2.3:a:xmlsoft:libxml2:1.7.0:*:*:*:*:*:*:*
cpe:2.3:a:xmlsoft:libxml2:1.7.1:*:*:*:*:*:*:*
cpe:2.3:a:xmlsoft:libxml2:1.7.2:*:*:*:*:*:*:*
cpe:2.3:a:xmlsoft:libxml2:1.7.3:*:*:*:*:*:*:*
cpe:2.3:a:xmlsoft:libxml2:1.7.4:*:*:*:*:*:*:*
cpe:2.3:a:xmlsoft:libxml2:1.8.0:*:*:*:*:*:*:*
cpe:2.3:a:xmlsoft:libxml2:1.8.1:*:*:*:*:*:*:*
cpe:2.3:a:xmlsoft:libxml2:1.8.2:*:*:*:*:*:*:*
cpe:2.3:a:xmlsoft:libxml2:1.8.3:*:*:*:*:*:*:*
cpe:2.3:a:xmlsoft:libxml2:1.8.4:*:*:*:*:*:*:*
cpe:2.3:a:xmlsoft:libxml2:1.8.5:*:*:*:*:*:*:*
cpe:2.3:a:xmlsoft:libxml2:1.8.6:*:*:*:*:*:*:*
cpe:2.3:a:xmlsoft:libxml2:1.8.7:*:*:*:*:*:*:*
cpe:2.3:a:xmlsoft:libxml2:1.8.9:*:*:*:*:*:*:*

To consult the complete list of CPE names with products and versions, see this page


References to Advisories, Solutions, and Tools