CVE-2011-2516

Severity Score

7.5

*CVSS v3

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

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.

Error de superación de límite (off-by-one) en la característica de firma XML en Apache XML Security para C++ v1.6.0,usado en Shibboleth anterior a v2.4.3 y posiblemente otros productos, permite a atacantes remotos provocar una denegación de servicio (caída) a través de una firma utilizando una clave RSA larga, que provoca un desbordamiento de búfer.

*Credits: N/A

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

High

Attack Vector

Network

Attack Complexity

Low

Authentication

None

Confidentiality

None

Integrity

None

Availability

Partial

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2011-06-15 CVE Reserved
2011-07-11 CVE Published
2024-08-06 CVE Updated
2024-08-06 First Exploit
2025-03-30 EPSS Updated
---------- Exploited in Wild
---------- KEV Due Date

CWE

CWE-189: Numeric Errors

CAPEC

References (16)

URL	Tag	Source
http://secunia.com/advisories/45198	Third Party Advisory
http://secunia.com/advisories/45491	Third Party Advisory
http://www.securityfocus.com/archive/1/518756/100/0/threaded	Mailing List
http://www.securityfocus.com/bid/48611	Vdb Entry
http://www.securitytracker.com/id?1025755	Vdb Entry
https://exchange.xforce.ibmcloud.com/vulnerabilities/68420	Vdb Entry
https://lists.apache.org/thread.html/680e6938b6412e26d5446054fd31de2011d33af11786b989127d1cc3%40%3Ccommits.santuario.apache.org%3E	Mailing List
https://lists.apache.org/thread.html/r1c07a561426ec5579073046ad7f4207cdcef452bb3100abaf908e0cd%40%3Ccommits.santuario.apache.org%3E	Mailing List

URL	Date	SRC
https://issues.apache.org/jira/browse/SANTUARIO-271	2024-08-06

URL	Date	SRC

URL	Date	SRC
http://lists.fedoraproject.org/pipermail/package-announce/2011-July/063159.html	2023-02-13
http://lists.fedoraproject.org/pipermail/package-announce/2011-July/063229.html	2023-02-13
http://santuario.apache.org/secadv/CVE-2011-2516.txt	2023-02-13
http://secunia.com/advisories/45151	2023-02-13
http://secunia.com/advisories/45191	2023-02-13
http://shibboleth.internet2.edu/secadv/secadv_20110706.txt	2023-02-13
http://www.debian.org/security/2011/dsa-2277	2023-02-13

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Apache Search vendor "Apache"		Xml Security For C\+\+ Search vendor "Apache" for product "Xml Security For C\+\+"				1.6.0 Search vendor "Apache" for product "Xml Security For C\+\+" and version "1.6.0"		-		Affected
Shibboleth Search vendor "Shibboleth"		Shibboleth-sp Search vendor "Shibboleth" for product "Shibboleth-sp"				<= 2.4.2 Search vendor "Shibboleth" for product "Shibboleth-sp" and version " <= 2.4.2"		-		Affected
Shibboleth Search vendor "Shibboleth"		Shibboleth-sp Search vendor "Shibboleth" for product "Shibboleth-sp"				1.3.1 Search vendor "Shibboleth" for product "Shibboleth-sp" and version "1.3.1"		-		Affected
Shibboleth Search vendor "Shibboleth"		Shibboleth-sp Search vendor "Shibboleth" for product "Shibboleth-sp"				1.3.2 Search vendor "Shibboleth" for product "Shibboleth-sp" and version "1.3.2"		-		Affected
Shibboleth Search vendor "Shibboleth"		Shibboleth-sp Search vendor "Shibboleth" for product "Shibboleth-sp"				1.3.3 Search vendor "Shibboleth" for product "Shibboleth-sp" and version "1.3.3"		-		Affected
Shibboleth Search vendor "Shibboleth"		Shibboleth-sp Search vendor "Shibboleth" for product "Shibboleth-sp"				1.3.4 Search vendor "Shibboleth" for product "Shibboleth-sp" and version "1.3.4"		-		Affected
Shibboleth Search vendor "Shibboleth"		Shibboleth-sp Search vendor "Shibboleth" for product "Shibboleth-sp"				1.3.5 Search vendor "Shibboleth" for product "Shibboleth-sp" and version "1.3.5"		-		Affected
Shibboleth Search vendor "Shibboleth"		Shibboleth-sp Search vendor "Shibboleth" for product "Shibboleth-sp"				1.3f Search vendor "Shibboleth" for product "Shibboleth-sp" and version "1.3f"		-		Affected
Shibboleth Search vendor "Shibboleth"		Shibboleth-sp Search vendor "Shibboleth" for product "Shibboleth-sp"				2.0 Search vendor "Shibboleth" for product "Shibboleth-sp" and version "2.0"		-		Affected
Shibboleth Search vendor "Shibboleth"		Shibboleth-sp Search vendor "Shibboleth" for product "Shibboleth-sp"				2.1 Search vendor "Shibboleth" for product "Shibboleth-sp" and version "2.1"		-		Affected
Shibboleth Search vendor "Shibboleth"		Shibboleth-sp Search vendor "Shibboleth" for product "Shibboleth-sp"				2.2 Search vendor "Shibboleth" for product "Shibboleth-sp" and version "2.2"		-		Affected
Shibboleth Search vendor "Shibboleth"		Shibboleth-sp Search vendor "Shibboleth" for product "Shibboleth-sp"				2.2.1 Search vendor "Shibboleth" for product "Shibboleth-sp" and version "2.2.1"		-		Affected
Shibboleth Search vendor "Shibboleth"		Shibboleth-sp Search vendor "Shibboleth" for product "Shibboleth-sp"				2.3 Search vendor "Shibboleth" for product "Shibboleth-sp" and version "2.3"		-		Affected
Shibboleth Search vendor "Shibboleth"		Shibboleth-sp Search vendor "Shibboleth" for product "Shibboleth-sp"				2.3.1 Search vendor "Shibboleth" for product "Shibboleth-sp" and version "2.3.1"		-		Affected
Shibboleth Search vendor "Shibboleth"		Shibboleth-sp Search vendor "Shibboleth" for product "Shibboleth-sp"				2.4 Search vendor "Shibboleth" for product "Shibboleth-sp" and version "2.4"		-		Affected
Shibboleth Search vendor "Shibboleth"		Shibboleth-sp Search vendor "Shibboleth" for product "Shibboleth-sp"				2.4.1 Search vendor "Shibboleth" for product "Shibboleth-sp" and version "2.4.1"		-		Affected