{"id":"CVE-2011-2516","aliases":["DEBIAN-CVE-2011-2516","DSA-2277-1","EUVD-2011-2501","GHSA-2jmv-v2x6-mmv8","UBUNTU-CVE-2011-2516"],"status":"published","title":"Off-by-one error in the XML signature feature in Apache XML Security for C++ 1.6.0, as used in...","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.","severity":{"version":"2.0","score":5,"vector":"AV:N/AC:L/Au:N/C:N/I:N/A:P","level":"medium","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-07","score":0.0772,"percentile":0.9465,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-189"],"published":"2011-07-10T00:00:00Z","modified":"2026-10-23T17:47:37Z","fixes":[{"ecosystem":"Debian:12","package":"xml-security-c","fixed_in":["1.6.1-1"],"sources":["osv"]},{"ecosystem":"Debian:13","package":"xml-security-c","fixed_in":["1.6.1-1"],"sources":["osv"]},{"ecosystem":"Debian:14","package":"xml-security-c","fixed_in":["1.6.1-1"],"sources":["osv"]},{"ecosystem":"Debian:5.0","package":"xml-security-c","fixed_in":["1.4.0-3+lenny3"],"sources":["osv"]},{"ecosystem":"Debian:6.0","package":"xml-security-c","fixed_in":["1.5.1-3+squeeze1"],"sources":["osv"]}],"affected":[{"source":"osv","ecosystem":"Debian:12","package":"xml-security-c","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.6.1-1"}]}]},{"source":"osv","ecosystem":"Debian:13","package":"xml-security-c","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.6.1-1"}]}]},{"source":"osv","ecosystem":"Debian:14","package":"xml-security-c","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.6.1-1"}]}]},{"source":"osv","ecosystem":"Debian:5.0","package":"xml-security-c","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.4.0-3+lenny3"}]}],"versions":["1.4.0-3","1.4.0-3+lenny2"]},{"source":"osv","ecosystem":"Debian:6.0","package":"xml-security-c","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.5.1-3+squeeze1"}]}],"versions":["1.5.1-3","1.5.1-3+squeeze1~bpo50+1"]}],"products":[{"vendor":"apache","product":"xml_security_for_c\\+\\+"},{"vendor":"shibboleth","product":"shibboleth-sp"}],"references":[{"url":"http://www.debian.org/security/2011/dsa-2277","tags":["vendor-advisory","x_refsource_DEBIAN","x_transferred","advisory"]},{"url":"http://secunia.com/advisories/45491","tags":["third-party-advisory","x_refsource_SECUNIA","x_transferred","advisory"]},{"url":"http://secunia.com/advisories/45151","tags":["third-party-advisory","x_refsource_SECUNIA","x_transferred","Vendor Advisory","advisory"]},{"url":"http://www.securityfocus.com/archive/1/518756/100/0/threaded","tags":["mailing-list","x_refsource_BUGTRAQ","x_transferred","web"]},{"url":"https://exchange.xforce.ibmcloud.com/vulnerabilities/68420","tags":["vdb-entry","x_refsource_XF","x_transferred","web"]},{"url":"https://issues.apache.org/jira/browse/SANTUARIO-271","tags":["x_refsource_CONFIRM","x_transferred","Exploit","evidence"]},{"url":"http://santuario.apache.org/secadv/CVE-2011-2516.txt","tags":["x_refsource_CONFIRM","x_transferred","Vendor Advisory","advisory","report"]},{"url":"http://lists.fedoraproject.org/pipermail/package-announce/2011-July/063159.html","tags":["vendor-advisory","x_refsource_FEDORA","x_transferred","web"]},{"url":"http://secunia.com/advisories/45198","tags":["third-party-advisory","x_refsource_SECUNIA","x_transferred","advisory"]},{"url":"http://secunia.com/advisories/45191","tags":["third-party-advisory","x_refsource_SECUNIA","x_transferred","Vendor Advisory","advisory"]},{"url":"http://shibboleth.internet2.edu/secadv/secadv_20110706.txt","tags":["x_refsource_CONFIRM","x_transferred","Vendor Advisory","advisory"]},{"url":"http://www.securitytracker.com/id?1025755","tags":["vdb-entry","x_refsource_SECTRACK","x_transferred","web"]},{"url":"http://lists.fedoraproject.org/pipermail/package-announce/2011-July/063229.html","tags":["vendor-advisory","x_refsource_FEDORA","x_transferred","web"]},{"url":"http://www.securityfocus.com/bid/48611","tags":["vdb-entry","x_refsource_BID","x_transferred","web"]},{"url":"https://lists.apache.org/thread.html/680e6938b6412e26d5446054fd31de2011d33af11786b989127d1cc3%40%3Ccommits.santuario.apache.org%3E","tags":["mailing-list","x_refsource_MLIST","x_transferred","web"]},{"url":"https://lists.apache.org/thread.html/r1c07a561426ec5579073046ad7f4207cdcef452bb3100abaf908e0cd%40%3Ccommits.santuario.apache.org%3E","tags":["mailing-list","x_refsource_MLIST","x_transferred","web"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2011-2516"},{"url":"https://lists.apache.org/thread.html/680e6938b6412e26d5446054fd31de2011d33af11786b989127d1cc3@%3Ccommits.santuario.apache.org%3E"},{"url":"https://lists.apache.org/thread.html/r1c07a561426ec5579073046ad7f4207cdcef452bb3100abaf908e0cd@%3Ccommits.santuario.apache.org%3E"},{"url":"https://github.com/advisories/GHSA-2jmv-v2x6-mmv8"},{"url":"https://security-tracker.debian.org/tracker/CVE-2011-2516","tags":["advisory"]},{"url":"https://ubuntu.com/security/CVE-2011-2516","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2011-2516","tags":["report"]}],"sources":{"cve":[{"id":"CVE-2011-2516","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.","status":"published","published":"2011-07-11T20:00:00Z","modified":"2024-08-06T23:00:34.179Z","updated_at":"2026-11-02T14:35:36.252742Z"}],"euvd":[{"id":"EUVD-2011-2501","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.","status":"published","published":"2011-07-11T20:00:00Z","modified":"2024-08-06T23:00:34Z","updated_at":"2026-11-03T01:39:55.11051Z"}],"ghsa":[{"id":"GHSA-2jmv-v2x6-mmv8","title":"Off-by-one error in the XML signature feature in Apache XML Security for C++ 1.6.0, as used in...","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.","status":"published","published":"2022-05-13T01:05:56Z","modified":"2023-02-20T05:05:46Z","updated_at":"2026-11-02T14:54:10.77374Z"}],"nvd":[{"id":"CVE-2011-2516","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.","status":"published","published":"2011-07-11T20:55:01.38Z","modified":"2026-06-16T23:31:29.877Z","cvss":[{"version":"2.0","score":5,"vector":"AV:N/AC:L/Au:N/C:N/I:N/A:P","level":"medium","assessor":"primary"}],"cwes":["CWE-189"],"updated_at":"2026-11-02T14:02:09.182398Z"}],"osv":[{"id":"CVE-2011-2516","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.","status":"published","published":"2011-07-11T20:55:01Z","modified":"2026-04-10T03:41:50.671757Z","updated_at":"2026-11-02T15:43:58.279353Z"},{"id":"DEBIAN-CVE-2011-2516","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.","status":"published","published":"2011-07-11T20:55:01.38Z","modified":"2026-10-23T17:47:37.721891143Z","updated_at":"2026-11-02T15:45:24.612044Z"},{"id":"DSA-2277-1","title":"xml-security-c - buffer overflow","status":"published","published":"2011-07-10T00:00:00Z","modified":"2026-03-09T01:22:01.278019Z","updated_at":"2026-11-02T15:46:15.108335Z"},{"id":"UBUNTU-CVE-2011-2516","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.","status":"withdrawn","published":"2011-07-11T20:55:00Z","modified":"2025-07-16T07:30:47.249824Z","updated_at":"2026-11-02T15:54:06.395274Z"}]}}