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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…
Medium5.0EPSS 7.7%
- Published
- Updated
- Reserved
- Assigned by
- redhat
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.
Timeline
ID reserved
By redhat
- 26 days later
· 26 days later
Published
- 13 years later
· 13 years later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Modified | 2.0 | Medium5.0 | AV:N/AC:L/Au:N/C:N/I:N/A:P |
- EPSS (exploitation in 30 days)
- 7.7% · top 5.3% of all CVEs (8 Nov 2026)
Loading the EPSS history…
The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 5.0.
Weakness
Affected products
n/a
- affected n/a
References (16)
- DSA-2277 (opens in a new tab)vendor-advisoryx_refsource_DEBIANx_transferred
- 45491 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
- 45151 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
- 20110707 Security Advisory: CVE-2011-2516 (opens in a new tab)mailing-listx_refsource_BUGTRAQx_transferred
- apache-xml-dos(68420) (opens in a new tab)vdb-entryx_refsource_XFx_transferred
- https://issues.apache.org/jira/browse/SANTUARIO-271 (opens in a new tab)x_refsource_CONFIRMx_transferred
- http://santuario.apache.org/secadv/CVE-2011-2516.txt (opens in a new tab)x_refsource_CONFIRMx_transferred
- FEDORA-2011-9501 (opens in a new tab)vendor-advisoryx_refsource_FEDORAx_transferred
- 45198 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
- 45191 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
- http://shibboleth.internet2.edu/secadv/secadv_20110706.txt (opens in a new tab)x_refsource_CONFIRMx_transferred
- 1025755 (opens in a new tab)vdb-entryx_refsource_SECTRACKx_transferred
- FEDORA-2011-9494 (opens in a new tab)vendor-advisoryx_refsource_FEDORAx_transferred
- 48611 (opens in a new tab)vdb-entryx_refsource_BIDx_transferred
- [santuario-commits] 20190823 svn commit: r1049214 - in /websites/production/santuario/content: cache/main.pageCache download.html index.html javaindex.html javareleasenotes.html secadv.data/CVE-2019-12400.asc secadv.html (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- [santuario-commits] 20210917 svn commit: r1076843 - in /websites/production/santuario/content: cache/main.pageCache index.html javaindex.html secadv.data/CVE-2021-40690.txt.asc secadv.html (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://cveledger.app/cve/CVE-2011-2516)Record last updated .