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Fencer Intel
high 7.8

CVE-2014-2744 json

plugins/mod_compression.lua in (1) Prosody before 0.9.4 and (2) Lightwitch Metronome through 3.4 negotiates stream compression while a sess…

published 2014-04-11 12 y ago modified 2026-06-17 4 mo ago also EUVD-2014-2771

cvss
7.8
version 2.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
3.3%
EPSS 3.3% chance of exploitation in 30 days, percentile 88%
public exploits
0
none known

Summary

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.

Patch / fix

  • prosody Debian 14, Debian 13, Debian 12 0.9.4-1
  • lua-expat Debian 14, Debian 13, Debian 12 1.3.0-1

debian advisories DEBIAN-CVE-2014-2744

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2014-2744 updated cvss 5.0

prosody: resource consumption denial of service when using XMPP application-layer compression

  • Red Hat All currently supported Red Hat products
    not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

Exploit prediction

3.31% chance of exploitation in the next 30 days, higher than 88% of all scored CVEs (FIRST EPSS, 2026-11-09).

Exploits and checks

  • code.lightwitch.org http://code.lightwitch.org/metronome/rev/49f47277a411 referenced PoC, tagged "exploit" by a source, unverified
  • hg.prosody.im http://hg.prosody.im/0.9/rev/b3b1c9da38fb referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
NVD 2.0 7.8 AV:N/AC:L/Au:N/C:N/I:N/A:C

Classification

Weakness
  • CWE-20 Improper Input Validation

References

Sources

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.