CVE-2011-2516 describes an off-by-one error in the XML signature feature of Apache XML Security for C++ 1.6.0, affecting products like Shibboleth before 2.4.3. This vulnerability allows remote attackers to cause a denial of service (crash) via a buffer overflow triggered by a large RSA key in a signature. With a CVSS score of 5.0 (AV:N/AC:L/Au:N/C:N/I:N/A:P), it is a medium-severity vulnerability that can be exploited remotely with low complexity, resulting in availability impact. There is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
1.6.0CPE matchmatch criteria | cpe:2.3:a:apache:xml_security_for_c\+\+:1.6.0:*:*:*:*:*:*:* | ||
<= 2.4.2CPE matchmatch criteria | cpe:2.3:a:shibboleth:shibboleth-sp:*:*:*:*:*:*:*:* | ||
1.3.1CPE matchmatch criteria | cpe:2.3:a:shibboleth:shibboleth-sp:1.3.1:*:*:*:*:*:*:* | ||
1.3.2CPE matchmatch criteria | cpe:2.3:a:shibboleth:shibboleth-sp:1.3.2:*:*:*:*:*:*:* | ||
1.3.3CPE matchmatch criteria | cpe:2.3:a:shibboleth:shibboleth-sp:1.3.3:*:*:*:*:*:*:* |
CVSS version used by this source: 2.0
AV:N/AC:L/Au:N/C:N/I:N/A:P
The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.4 GitHub mentions.
No media coverage found for this CVE.
The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.
Remediation records are not available for this CVE.