CVE-2011-1753

Description

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.

Affected products

• process-one / ejabberd2.1.6
• process-one / ejabberd0.9 – 0.9
• process-one / ejabberd0.9.1 – 0.9.1
• process-one / ejabberd0.9.8 – 0.9.8
• process-one / ejabberd1.0.0 – 1.0.0
• process-one / ejabberd1.1.0 – 1.1.0
• process-one / ejabberd1.1.1 – 1.1.1
• process-one / ejabberd1.1.1.0 – 1.1.1.0
• process-one / ejabberd1.1.1.1 – 1.1.1.1
• process-one / ejabberd1.1.2 – 1.1.2
• process-one / ejabberd1.1.3 – 1.1.3
• process-one / ejabberd1.1.14 – 1.1.14
• process-one / ejabberd2.0.0 – 2.0.0
• process-one / ejabberd2.0.0 – 2.0.0
• process-one / ejabberd2.0.0 – 2.0.0
• process-one / ejabberd2.0.1_2 – 2.0.1_2
• process-one / ejabberd2.0.2 – 2.0.2
• process-one / ejabberd2.0.3 – 2.0.3
• process-one / ejabberd2.0.4 – 2.0.4
• process-one / ejabberd2.0.5 – 2.0.5
• process-one / ejabberd2.1.0 – 2.1.0
• process-one / ejabberd2.1.1 – 2.1.1
• process-one / ejabberd2.1.2 – 2.1.2
• process-one / ejabberd2.1.3 – 2.1.3
• process-one / ejabberd2.1.4 – 2.1.4
• process-one / ejabberd2.1.5 – 2.1.5
• process-one / ejabberd3.0.0 – 3.0.0
• process-one / ejabberd3.0.0 – 3.0.0
• process-one / exmpp0.9.6
• process-one / exmpp0.9.1 – 0.9.1
• process-one / exmpp0.9.2 – 0.9.2
• process-one / exmpp0.9.3 – 0.9.3
• process-one / exmpp0.9.4 – 0.9.4
• process-one / exmpp0.9.5 – 0.9.5

References

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