CVE-2014-2744: plugins/mod_compression.lua in (1) Prosody before 0.9.4 and (2) Lightwitch Metronome through 3.4 negotiates st

Q: How do I fix CVE-2014-2744?

metronome: upgrade to newer than 3.4; prosody: upgrade to newer than 0.9.3. Exact commands for each OS are on this page.

Q: Is CVE-2014-2744 being exploited?

CVE-2014-2744 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2014-2744 affect?

CVE-2014-2744 affects metronome, prosody. Severity is high (CVSS 7.8). 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 consumpt

Q: How urgent is CVE-2014-2744?

Priority 59/100. High severity; Public exploit reference; On your watchlist

This month

HIGH 7.8WATCHLISTUPGRADEUPGRADE

CVE-2014-2744 is a high-severity flaw (CVSS 7.8) affecting metronome, prosody. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

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.

Why this priority

High severity
Public exploit reference
On your watchlist

A fixed release or distro patch exists.

Risk facts

CVSS score	7.8 (High)
EPSS exploit chance	3.3% (top 11%)
CISA exploited list	No
Weakness	CWE-20
Published	2014-04-11
Last modified	2026-06-17

Publisher (CNA): Debian GNU/Linux · Vendor: lightwitch · prosody

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2014-04-11 01:55 UTCPublished CVE record published
2026-06-17 00:07 UTCUpdated Record last modified

lightwitch metronome UPGRADE

Affected: <= 3.4

Fixed in: newer than 3.4

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy metronome || rpm -q metronome || metronome --version

2. UPGRADE to newer than 3.4 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade metronome

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade metronome

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

prosody prosody UPGRADE

Affected: <= 0.9.3 · 0.1.0 · 0.2.0 · 0.3.0 · 0.4.0 · 0.4.1 · 0.4.2 · 0.5.0

Fixed in: newer than 0.9.3

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy prosody || rpm -q prosody || prosody --version

2. UPGRADE to newer than 0.9.3 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade prosody

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade prosody

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2014-2744?

metronome: upgrade to newer than 3.4; prosody: upgrade to newer than 0.9.3. Exact commands for each OS are on this page.

Is CVE-2014-2744 being exploited?

CVE-2014-2744 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2014-2744 affect?

CVE-2014-2744 affects metronome, prosody. Severity is high (CVSS 7.8). 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 consumpt

How urgent is CVE-2014-2744?

Priority 59/100. High severity; Public exploit reference; On your watchlist

Related CVEs

CVE-2014-2743 HIGH 7.8 UPGRADE plugins/mod_compression.lua in Lightwitch Metronome through 3.4 does not properly restrict the processing of c

References

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