| CVSS Meta Temp Score | Current Exploit Price (≈) | CTI Interest Score |
|---|---|---|
| 5.1 | $0-$5k | 0.00 |
Summary
A vulnerability was found in Shibboleth Shibboleth-sp up to 2.4.2. It has been rated as critical. The impacted element is an unknown function. The manipulation leads to numeric error. This vulnerability is documented as CVE-2011-2516. There is not any exploit available. Upgrading the affected component is advised.
Details
A vulnerability was found in Shibboleth Shibboleth-sp up to 2.4.2 and classified as critical. This issue affects an unknown function. The manipulation with an unknown input leads to a numeric error vulnerability. Using CWE to declare the problem leads to CWE-189. Impacted is availability. The summary by CVE is:
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.
The weakness was released 07/11/2011 by Paul (Website). It is possible to read the advisory at issues.apache.org. The identification of this vulnerability is CVE-2011-2516. The exploitation is known to be easy. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. The technical details are unknown and an exploit is not publicly available.
The vulnerability scanner Nessus provides a plugin with the ID 55739 (Fedora 15 : xml-security-c-1.5.1-5.fc15 (2011-9494)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Fedora Local Security Checks.
Upgrading to version 2.3.1 eliminates this vulnerability.
The vulnerability is also documented in the databases at X-Force (68420), Tenable (55739), SecurityFocus (BID 48611†), SecurityTracker (ID 1025755†) and Vulnerability Center (SBV-32284†). Be aware that VulDB is the high quality source for vulnerability data.
Product
Vendor
Name
Version
CPE 2.3
CPE 2.2
CVSSv4
VulDB Vector: 🔍VulDB Reliability: 🔍
CVSSv3
VulDB Meta Base Score: 5.3VulDB Meta Temp Score: 5.1
VulDB Base Score: 5.3
VulDB Temp Score: 5.1
VulDB Vector: 🔍
VulDB Reliability: 🔍
CVSSv2
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍
NVD Base Score: 🔍
Exploiting
Class: Numeric errorCWE: CWE-189
CAPEC: 🔍
ATT&CK: 🔍
Physical: No
Local: No
Remote: Yes
Availability: 🔍
Status: Not defined
EPSS Score: 🔍
EPSS Percentile: 🔍
Price Prediction: 🔍
Current Price Estimation: 🔍
| 0-Day | Unlock | Unlock | Unlock | Unlock |
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Nessus ID: 55739
Nessus Name: Fedora 15 : xml-security-c-1.5.1-5.fc15 (2011-9494)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Port: 🔍
OpenVAS ID: 69983
OpenVAS Name: Debian Security Advisory DSA 2277-1 (xml-security-c)
OpenVAS File: 🔍
OpenVAS Family: 🔍
Threat Intelligence
Interest: 🔍Active Actors: 🔍
Active APT Groups: 🔍
Countermeasures
Recommended: UpgradeStatus: 🔍
0-Day Time: 🔍
Upgrade: Shibboleth-sp 2.3.1
Timeline
05/12/2011 🔍06/15/2011 🔍
07/07/2011 🔍
07/11/2011 🔍
07/11/2011 🔍
07/18/2011 🔍
08/01/2011 🔍
03/23/2015 🔍
12/28/2024 🔍
Sources
Advisory: dsa-2277Researcher: Paul
Status: Confirmed
Confirmation: 🔍
CVE: CVE-2011-2516 (🔍)
GCVE (CVE): GCVE-0-2011-2516
GCVE (VulDB): GCVE-100-57911
OVAL: 🔍
X-Force: 68420
SecurityFocus: 48611 - Apache XML Security for C++ Signature Key Parsing Denial of Service Vulnerability
Secunia: 45151
SecurityTracker: 1025755
Vulnerability Center: 32284 - Apache XML Security for C++ in Shibboleth before 2.4.3 Remote Denial of Service Vulnerability, Medium
Entry
Created: 03/23/2015 16:50Updated: 12/28/2024 20:14
Changes: 03/23/2015 16:50 (59), 03/27/2017 16:41 (10), 11/14/2021 09:47 (6), 11/14/2021 09:51 (1), 11/14/2021 09:52 (1), 12/28/2024 20:14 (17)
Complete: 🔍
Cache ID: 216::103
Be aware that VulDB is the high quality source for vulnerability data.
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