CVE-2011-2516
5.0 · MEDIUMOverview
CVE-2011-2516 is a medium-severity vulnerability affecting apache xml_security_for_c\+\+. It was published on July 11, 2011 and has a CVSS 2.0 base score of 5.0 (MEDIUM).
This vulnerability has a CVSS 2.0 base score of 5.0, rated MEDIUM. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.
Technical 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.
Remediation
Check the references section for vendor advisories and patches from apache. Update xml_security_for_c\+\+ to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
Affected Products
| Vendor | Product | Versions | Status |
|---|---|---|---|
| shibboleth | shibboleth-sp | 0 | Affected |
References
Frequently Asked Questions
What is CVE-2011-2516?
CVE-2011-2516 is a medium-severity vulnerability affecting apache xml_security_for_c\+\+. It was published on July 11, 2011 and has a CVSS 2.0 base score of 5.0 (MEDIUM).
How severe is CVE-2011-2516?
This vulnerability has a CVSS 2.0 base score of 5.0, rated MEDIUM. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.
How do I fix or remediate CVE-2011-2516?
Check the references section for vendor advisories and patches from apache. Update xml_security_for_c\+\+ to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
How can CyberStrike help with CVE-2011-2516?
CyberStrike's AI-powered security agents can automatically detect CVE-2011-2516 across your infrastructure using autonomous pentesting, DAST scanning, and HackBrowser. The platform continuously monitors for known vulnerabilities and provides actionable remediation guidance prioritized by real-world exploitability.
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