CVE-2011-2516: apache xml_security_for_c\+\+ Numeric Errors
Vulnerability summary
CVE-2011-2516 is a medium (CVSS 5.0) Numeric Errors vulnerability in apache xml_security_for_c\+\+. EPSS estimates a 7.72% chance of exploitation in the next 30 days, higher than 94.5% of scored vulnerabilities. 1 public exploit is recorded.
Timeline
- 11-07-2011PublishedVulnerability first disclosed.
- 06-08-2024Last modifiedVulnerability information updated.
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 metrics
1 score · 1 source · 1 versionEPSS trend
Probability
7.72%
Chance of exploitation in the next 30 days
Percentile
95%
Versus all other CVEs
30-day change
0.00 pp
From 7.72% on 19-09-2026
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
1 foundExploit Reference (issues.apache.org)
Maturity: unknown
Weaknesses
CWE · root causeAffected systems
Apache1 product
Debian1 product
- xml-security-c< 1.6.1-1 | < 1.4.0-3+lenny3 | < 1.5.1-3+squeeze1
Shibboleth1 product
- shibboleth-sp≤ 2.4.2 | 1.3.1 | 1.3.2 | 1.3.3 | 1.3.4 | 1.3.5 | 1.3f | 2.0 | 2.1 | 2.2 | 2.2.1 | 2.3 | 2.3.1 | 2.4 | 2.4.1
Ubuntu1 product
- shibboleth-sp2< 2.5.2+dfsg-2
4 vendors · 4 products
References
19 links
- lists.fedoraproject.org/pipermail/package-announce/2011-July/063159.htmlVendor AdvisoryX Refsource FEDORA
Show all 19 references
- lists.fedoraproject.org/pipermail/package-announce/2011-July/063229.htmlVendor AdvisoryX Refsource FEDORA