Vulnerability 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.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Apache | Xml Security For C\+\+ | 1.6.0 |
| Shibboleth | Shibboleth-Sp | <= 2.4.2 |
Related Weaknesses (CWE)
References
- http://lists.fedoraproject.org/pipermail/package-announce/2011-July/063159.html
- http://lists.fedoraproject.org/pipermail/package-announce/2011-July/063229.html
- http://santuario.apache.org/secadv/CVE-2011-2516.txtVendor Advisory
- http://secunia.com/advisories/45151Vendor Advisory
- http://secunia.com/advisories/45191Vendor Advisory
- http://secunia.com/advisories/45198
- http://secunia.com/advisories/45491
- http://shibboleth.internet2.edu/secadv/secadv_20110706.txtVendor Advisory
- http://www.debian.org/security/2011/dsa-2277
- http://www.securityfocus.com/archive/1/518756/100/0/threaded
- http://www.securityfocus.com/bid/48611
- http://www.securitytracker.com/id?1025755
- https://exchange.xforce.ibmcloud.com/vulnerabilities/68420
- https://issues.apache.org/jira/browse/SANTUARIO-271Exploit
- https://lists.apache.org/thread.html/680e6938b6412e26d5446054fd31de2011d33af1178
FAQ
What is CVE-2011-2516?
CVE-2011-2516 is a vulnerability with a CVSS score of 5.0 (MEDIUM). 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...
How severe is CVE-2011-2516?
CVE-2011-2516 has been rated MEDIUM with a CVSS base score of 5.0/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2011-2516?
Check the references section above for vendor advisories and patch information. Affected products include: Apache Xml Security For C\+\+, Shibboleth Shibboleth-Sp.