CVE-2011-2516

    Dashboard / Vulnerabilities / CVE-2011-2516

    CVE-2011-2516

    Published: 11 Jul 2011Last Modified: 10 Apr 2026

    Summary:

    Details: 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.

    References: http://santuario.apache.org/secadv/CVE-2011-2516.txt, http://secunia.com/advisories/45151, http://secunia.com/advisories/45191, http://secunia.com/advisories/45198, http://secunia.com/advisories/45491, http://shibboleth.internet2.edu/secadv/secadv_20110706.txt, http://www.debian.org/security/2011/dsa-2277, https://issues.apache.org/jira/browse/SANTUARIO-271, http://lists.fedoraproject.org/pipermail/package-announce/2011-July/063159.html, http://lists.fedoraproject.org/pipermail/package-announce/2011-July/063229.html, 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://lists.apache.org/thread.html/680e6938b6412e26d5446054fd31de2011d33af11786b989127d1cc3%40%3Ccommits.santuario.apache.org%3E, https://lists.apache.org/thread.html/r1c07a561426ec5579073046ad7f4207cdcef452bb3100abaf908e0cd%40%3Ccommits.santuario.apache.org%3E

    Affected packages

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High
    CVE-2011-2516 | CVE-DB