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CVE-2011-2516

UnknownEPSS 7.72%

Last modified

CVE-2011-2516 is a vulnerability of currently unknown severity. 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.. EPSS estimates a 7.72% chance of exploitation in the next 30 days.

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.

Metrics

EPSS Probability
7.72%

93.8th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

VendorProductVersions
ApacheXml Security For C\+\+1.6.0
ShibbolethShibboleth-Sp<= 2.4.2
ShibbolethShibboleth-Sp1.3.1
ShibbolethShibboleth-Sp1.3.2
ShibbolethShibboleth-Sp1.3.3
ShibbolethShibboleth-Sp1.3.4
ShibbolethShibboleth-Sp1.3.5
ShibbolethShibboleth-Sp1.3f
ShibbolethShibboleth-Sp2.0
ShibbolethShibboleth-Sp2.1
ShibbolethShibboleth-Sp2.2
ShibbolethShibboleth-Sp2.2.1
ShibbolethShibboleth-Sp2.3
ShibbolethShibboleth-Sp2.3.1
ShibbolethShibboleth-Sp2.4
ShibbolethShibboleth-Sp2.4.1

References

Timeline

Published
Last Modified
Status
Modified

Frequently Asked Questions

What is CVE-2011-2516?
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.
How severe is CVE-2011-2516?
Severity scoring for CVE-2011-2516 is pending analysis. The EPSS model estimates a 7.72% probability of exploitation in the next 30 days.
How do I fix CVE-2011-2516?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2011-2516?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST