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

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CVE-2011-2516

Severity CVSS v4.0:
Pending analysis
Type:
CWE-189 Numeric Errors
Publication date:
11/07/2011
Last modified:
11/04/2025

Description

Off-by-one error in the XML signature feature in Apache XML Security for C++ 1.6.0, as used in Shibboleth before 2.4.3 and possibly other products, allows remote attackers to cause a denial of service (crash) via a signature using a large RSA key, which triggers a buffer overflow.

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:apache:xml_security_for_c\+\+:1.6.0:*:*:*:*:*:*:*
cpe:2.3:a:shibboleth:shibboleth-sp:*:*:*:*:*:*:*:* 2.4.2 (including)
cpe:2.3:a:shibboleth:shibboleth-sp:1.3.1:*:*:*:*:*:*:*
cpe:2.3:a:shibboleth:shibboleth-sp:1.3.2:*:*:*:*:*:*:*
cpe:2.3:a:shibboleth:shibboleth-sp:1.3.3:*:*:*:*:*:*:*
cpe:2.3:a:shibboleth:shibboleth-sp:1.3.4:*:*:*:*:*:*:*
cpe:2.3:a:shibboleth:shibboleth-sp:1.3.5:*:*:*:*:*:*:*
cpe:2.3:a:shibboleth:shibboleth-sp:1.3f:*:*:*:*:*:*:*
cpe:2.3:a:shibboleth:shibboleth-sp:2.0:*:*:*:*:*:*:*
cpe:2.3:a:shibboleth:shibboleth-sp:2.1:*:*:*:*:*:*:*
cpe:2.3:a:shibboleth:shibboleth-sp:2.2:*:*:*:*:*:*:*
cpe:2.3:a:shibboleth:shibboleth-sp:2.2.1:*:*:*:*:*:*:*
cpe:2.3:a:shibboleth:shibboleth-sp:2.3:*:*:*:*:*:*:*
cpe:2.3:a:shibboleth:shibboleth-sp:2.3.1:*:*:*:*:*:*:*
cpe:2.3:a:shibboleth:shibboleth-sp:2.4:*:*:*:*:*:*:*

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


References to Advisories, Solutions, and Tools