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    CVE-2011-1753

    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.

    Published:Jun 21, 2011
    Last Modified:Apr 11, 2025
    EPS:Jun 21, 2011
    EPSS Score:0.01937
    CVSS Score:5

    Affected Products

    Vendor
    Process-one
    Product
    Ejabberd
    Vendor
    Process-one
    Product
    Exmpp

    Exploits

    No exploit reference

    Common Weakness Enumeration

    No CWE recorded yet

    Common Attack Pattern Enumeration and Classification (CAPEC)

    No CAPEC recorded yet

    Related CVEs

    CVE-2014-8760 (CVSS 5) — ejabberd before 2.1.13 does not enforce the starttls_required setting when compression is used, which causes c…
    CVE-2013-6169 (CVSS 4.3) — The TLS driver in ejabberd before 2.1.12 supports (1) SSLv2 and (2) weak SSL ciphers, which makes it easier fo…
    CVE-2011-4320 (CVSS 4) — The mod_pubsub module (mod_pubsub.erl) in ejabberd 2.1.8 and 3.0.0-alpha-3 allows remote authenticated users t…
    CVE-2010-0305 (CVSS 5) — ejabberd_c2s.erl in ejabberd before 2.1.3 allows remote attackers to cause a denial of service (daemon crash) …
    CVE-2009-0934 (CVSS 4.3) — Cross-site scripting (XSS) vulnerability in ejabberd before 2.0.4 allows remote attackers to inject arbitrary …
    CVE-2007-0903 (CVSS 10) — Unspecified vulnerability in the mod_roster_odbc module in ejabberd before 1.1.3 has unknown impact and attack…
    CVE-2006-2221 (CVSS 2.1) — A third-party installer generation tool, possibly BitRock InstallBuilder, as used in products including Proces…

    References

    http://lists.fedoraproject.org/pipermail/package-announce/2011-June/062099.html
    http://lists.fedoraproject.org/pipermail/package-announce/2011-June/062145.html
    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
    http://www.process-one.net/en/ejabberd/release_notes/release_note_ejabberd_2.1.7/
    http://www.securityfocus.com/bid/48072
    https://bugzilla.redhat.com/show_bug.cgi?id=700454
    https://exchange.xforce.ibmcloud.com/vulnerabilities/67769
    https://git.process-one.net/ejabberd/mainline/commit/bd1df027c622e1f96f9eeaac612a6a956c1ff0b6
    http://lists.fedoraproject.org/pipermail/package-announce/2011-June/062099.html
    http://lists.fedoraproject.org/pipermail/package-announce/2011-June/062145.html
    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
    http://www.process-one.net/en/ejabberd/release_notes/release_note_ejabberd_2.1.7/
    http://www.securityfocus.com/bid/48072
    https://bugzilla.redhat.com/show_bug.cgi?id=700454
    https://exchange.xforce.ibmcloud.com/vulnerabilities/67769
    https://git.process-one.net/ejabberd/mainline/commit/bd1df027c622e1f96f9eeaac612a6a956c1ff0b6

    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