CVE-2011-1753

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    CVE-2011-1753

    Published: 21 Jun 2011Last Modified: 10 Apr 2026

    Summary:

    Details: expat_erl.c in ejabberd before 2.1.7 and 3.x before 3.0.0-alpha-3, and exmpp before 0.9.7, does not properly detect recursion during entity expansion, which allows remote attackers to cause a denial of service (memory and CPU consumption) via a crafted XML document containing a large number of nested entity references, a similar issue to CVE-2003-1564.

    References: http://secunia.com/advisories/44765, http://secunia.com/advisories/44807, http://secunia.com/advisories/45120, http://www.debian.org/security/2011/dsa-2248, http://www.ejabberd.im/ejabberd-2.1.7, https://git.process-one.net/ejabberd/mainline/commit/bd1df027c622e1f96f9eeaac612a6a956c1ff0b6, https://bugzilla.redhat.com/show_bug.cgi?id=700454, http://lists.fedoraproject.org/pipermail/package-announce/2011-June/062099.html, http://lists.fedoraproject.org/pipermail/package-announce/2011-June/062145.html, http://www.process-one.net/en/ejabberd/release_notes/release_note_ejabberd_2.1.7/, http://www.securityfocus.com/bid/48072, https://exchange.xforce.ibmcloud.com/vulnerabilities/67769

    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-2011-1753 | CVE-DB