CVE-2011-4320

Severity: medium (CVSS 4.0 v2.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 2.0% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2012-02-18 · updated 2026-06-16
Weakness: CWE-399

Description

The mod_pubsub module (mod_pubsub.erl) in ejabberd 2.1.8 and 3.0.0-alpha-3 allows remote authenticated users to cause a denial of service (infinite loop) via a stanza with a publish tag that lacks a node attribute.

Affected products

Process-One Ejabberd: 2.1.8, 3.0.0-alpha3

References

http://secunia.com/advisories/46915
http://www.openwall.com/lists/oss-security/2011/11/19/1
http://www.openwall.com/lists/oss-security/2011/11/19/2
http://www.osvdb.org/77302
http://www.process-one.net/en/ejabberd/release_notes/release_note_ejabberd_2.1.9
https://support.process-one.net/browse/EJAB-1498
http://secunia.com/advisories/46915
http://www.openwall.com/lists/oss-security/2011/11/19/1
http://www.openwall.com/lists/oss-security/2011/11/19/2
http://www.osvdb.org/77302
http://www.process-one.net/en/ejabberd/release_notes/release_note_ejabberd_2.1.9
https://support.process-one.net/browse/EJAB-1498

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