CVE-2011-2516: Buffer Overflow

Published Jul 11, 2011
·
Updated

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.

Affected Software

16 affected components
Apache Xml Security For C\+\+=1.6.0
shibboleth Shibboleth-sp<=2.4.2
shibboleth Shibboleth-sp=1.3.1
shibboleth Shibboleth-sp=1.3.2
shibboleth Shibboleth-sp=1.3.3
shibboleth Shibboleth-sp=1.3.4
shibboleth Shibboleth-sp=1.3.5
shibboleth Shibboleth-sp=1.3f
shibboleth Shibboleth-sp=2.0
shibboleth Shibboleth-sp=2.1
shibboleth Shibboleth-sp=2.2
shibboleth Shibboleth-sp=2.2.1
shibboleth Shibboleth-sp=2.3
shibboleth Shibboleth-sp=2.3.1
shibboleth Shibboleth-sp=2.4
shibboleth Shibboleth-sp=2.4.1

Event History

Jul 11, 2011
CVE Published
via MITRE·08:00 PM
Data Sourced
via MITRE·08:00 PM
Description

Frequently Asked Questions

1

What is the severity of CVE-2011-2516?

CVE-2011-2516 is categorized as a denial of service vulnerability that may lead to application crashes.

2

How do I fix CVE-2011-2516?

To fix CVE-2011-2516, upgrade to a corrected version of Apache XML Security for C++ or Shibboleth that addresses this vulnerability.

3

Which versions are affected by CVE-2011-2516?

CVE-2011-2516 affects Apache XML Security for C++ 1.6.0 and versions of Shibboleth before 2.4.3, including several specific 1.x and 2.x versions.

4

What type of attack does CVE-2011-2516 enable?

CVE-2011-2516 enables remote attackers to crash the application through a crafted XML signature that triggers a buffer overflow.

5

Is CVE-2011-2516 a network-accessible vulnerability?

Yes, CVE-2011-2516 is network-accessible as it can be exploited by remote attackers without physical access.

Contact

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