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

Go to Calendar     Go to Press Room     Go to Newsletters subscription

Search

CVE-2014-3660

Severity CVSS v4.0:
Pending analysis
Type:
Unavailable / Other
Publication date:
04/11/2014
Last modified:
12/04/2025

Description

parser.c in libxml2 before 2.9.2 does not properly prevent entity expansion even when entity substitution has been disabled, which allows context-dependent attackers to cause a denial of service (CPU consumption) via a crafted XML document containing a large number of nested entity references, a variant of the "billion laughs" attack.

Impact

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

Base Score: 5.00 MEDIUM
Vector: AV:N/AC:L/Au:N/C:N/I:N/A:P

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

Base Score 2.0
5.00
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:libxml2:2.0.0:*:*:*:*:*:*:*
cpe:2.3:a:xmlsoft:libxml2:2.1.0:*:*:*:*:*:*:*
cpe:2.3:a:xmlsoft:libxml2:2.1.1:*:*:*:*:*:*:*
cpe:2.3:a:xmlsoft:libxml2:2.2.0:*:*:*:*:*:*:*
cpe:2.3:a:xmlsoft:libxml2:2.2.0:beta:*:*:*:*:*:*
cpe:2.3:a:xmlsoft:libxml2:2.2.1:*:*:*:*:*:*:*
cpe:2.3:a:xmlsoft:libxml2:2.2.2:*:*:*:*:*:*:*
cpe:2.3:a:xmlsoft:libxml2:2.2.3:*:*:*:*:*:*:*
cpe:2.3:a:xmlsoft:libxml2:2.2.4:*:*:*:*:*:*:*
cpe:2.3:a:xmlsoft:libxml2:2.2.5:*:*:*:*:*:*:*
cpe:2.3:a:xmlsoft:libxml2:2.2.6:*:*:*:*:*:*:*
cpe:2.3:a:xmlsoft:libxml2:2.2.7:*:*:*:*:*:*:*
cpe:2.3:a:xmlsoft:libxml2:2.2.8:*:*:*:*:*:*:*
cpe:2.3:a:xmlsoft:libxml2:2.2.9:*:*:*:*:*:*:*

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


References to Advisories, Solutions, and Tools