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.

Score

CVSS 2.0 5.0 Medium

Status

Modified - secalert@redhat.com

Published

2011-06-21

Last modified

2024-08-06

Weaknesses

CWE-399

Affected products

• Ejabberd (Process-one)
• Exmpp (Process-one)

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