CVE-2014-2744

Severity: high (CVSS 7.8 v2.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 3.3% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2014-04-11 · updated 2026-06-17
Weakness: CWE-20

Description

plugins/mod_compression.lua in (1) Prosody before 0.9.4 and (2) Lightwitch Metronome through 3.4 negotiates stream compression while a session is unauthenticated, which allows remote attackers to cause a denial of service (resource consumption) via compressed XML elements in an XMPP stream, aka an "xmppbomb" attack.

Affected products

Lightwitch Metronome: through 3.4
Prosody: through 0.9.3; 0.1.0, 0.2.0, 0.3.0, 0.4.0, 0.4.1, 0.4.2 (+13)

References

http://blog.prosody.im/prosody-0-9-4-released/
http://code.lightwitch.org/metronome/rev/49f47277a411
http://hg.prosody.im/0.9/rev/b3b1c9da38fb
http://openwall.com/lists/oss-security/2014/04/07/7
http://openwall.com/lists/oss-security/2014/04/09/1
http://secunia.com/advisories/57710
http://www.debian.org/security/2014/dsa-2895
http://xmpp.org/resources/security-notices/uncontrolled-resource-consumption-with-highly-compressed-xmpp-stanzas/
http://blog.prosody.im/prosody-0-9-4-released/
http://code.lightwitch.org/metronome/rev/49f47277a411
http://hg.prosody.im/0.9/rev/b3b1c9da38fb
http://openwall.com/lists/oss-security/2014/04/07/7

Get alerted when CVE-2014-2744 or the next vulnerability affects your stack