DEBIAN-CVE-2024-31208

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Source

https://security-tracker.debian.org/tracker/CVE-2024-31208

Import Source

https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2024-31208.json

JSON Data

https://api.osv.dev/v1/vulns/DEBIAN-CVE-2024-31208

Upstream

CVE-2024-31208

Withdrawn

2026-08-11T20:49:51Z

Published

2024-04-23T18:15:14Z

Modified

2026-08-11T20:49:51Z

Severity

6.5 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H CVSS Calculator

Summary

[none]

Details

Synapse is an open-source Matrix homeserver. A remote Matrix user with malicious intent, sharing a room with Synapse instances before 1.105.1, can dispatch specially crafted events to exploit a weakness in the V2 state resolution algorithm. This can induce high CPU consumption and accumulate excessive data in the database of such instances, resulting in a denial of service. Servers in private federations, or those that do not federate, are not affected. Server administrators should upgrade to 1.105.1 or later. Some workarounds are available. One can ban the malicious users or ACL block servers from the rooms and/or leave the room and purge the room using the admin API.

References

https://security-tracker.debian.org/tracker/CVE-2024-31208

Affected packages

Debian:14 / matrix-synapse

Package

Name: matrix-synapse
Purl: pkg:deb/debian/matrix-synapse?arch=source&distro=forky

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0 Unknown introduced version / All previous versions are affected

Fixed

1.103.0-2

Affected versions

0.*

0.19.2+dfsg-3

0.19.2+dfsg-4

0.19.2+dfsg-5

0.19.2+dfsg-6

0.24.0+dfsg-1

0.27.2+dfsg-1

0.28.0+dfsg-1

0.28.0+dfsg-2

0.28.1+dfsg-1

0.29.1+dfsg-1

0.30.0+dfsg-1

0.31.0+dfsg-1

0.31.0+dfsg-2

0.31.1+dfsg-1

0.31.1+dfsg-2

0.31.2+dfsg-1

0.32.2+dfsg-1

0.33.0+dfsg-1

0.33.1+dfsg-1

0.33.2+dfsg-1

0.33.2+dfsg-2

0.33.2+dfsg-3

0.33.3-1

0.33.3-2

0.33.3.1-1

0.33.4-1~bpo9+1

0.33.4-1

0.33.8-1

0.33.9-2~bpo9+1

0.33.9-2

0.34.0~rc2-1

0.34.0-1

0.34.0-2

0.34.0-3~bpo9+1

0.34.0-3~bpo9+2

0.34.0-3

0.34.1.1-1

0.34.1.1-2~bpo9+1

0.34.1.1-2

0.34.1.1-3~bpo9+1

0.34.1.1-3~bpo9+2

0.34.1.1-3

0.34.1.1-4

0.99.0-1~bpo9+1

0.99.0-1~bpo9+2

0.99.0-1~bpo9+3

0.99.0-1

0.99.1.1-1

0.99.2-1~bpo9+1

0.99.2-1~bpo9+2

0.99.2-1

0.99.2-2

0.99.2-3

0.99.2-4

0.99.2-5~bpo9+1

0.99.2-5

0.99.2-6

0.99.3.2-1

0.99.5.1-1

0.99.5.2-1

1.*

1.0.0-1

1.0.0-2~bpo10+1

1.0.0-2

1.1.0-1

1.2.1-1~bpo10+1

1.2.1-1~bpo10+2

1.2.1-1

1.2.1-2

1.3.0-1~bpo10+1

1.3.0-1

1.4.0~rc1-1

1.4.0-1

1.5.0~rc1-1

1.5.0-1

1.5.1-1~bpo10+1

1.5.1-1

1.6.0-1

1.6.1-1~bpo10+1

1.6.1-1

1.7.0-1

1.7.0-2

1.7.1-1

1.7.2-1~bpo10+1

1.7.2-1

1.7.3-1~bpo10+1

1.7.3-1

1.8.0-1

1.9.0-1~bpo10+1

1.9.0-1

1.9.1-1~bpo10+1

1.9.1-1

1.10.0-1

1.10.0-2

1.11.0-1

1.11.1-1~bpo10+1

1.11.1-1

1.12.0-1~bpo10+1

1.12.0-1

1.12.3-1~bpo10+1

1.12.3-1

1.12.4-1~bpo10+1

1.12.4-1

1.13.0-1~bpo10+1

1.13.0-1

1.15.0-1

1.15.1-1~bpo10+1

1.15.1-1~bpo10+2

1.15.1-1

1.15.2-1

1.16.0-1

1.17.0-1~bpo10+1

1.17.0-1

1.18.0-1~bpo10+1

1.18.0-1

1.19.0-1~bpo10+1

1.19.0-1

1.19.1-1~bpo10+1

1.19.1-1~bpo10+2

1.19.1-1~bpo10+3

1.19.1-1

1.19.2-1

1.19.3-1

1.20.0-1

1.20.1-1~bpo10+1

1.20.1-1

1.21.1-1

1.21.2-1~bpo10+1

1.21.2-1

1.22.1-1~bpo10+1

1.22.1-1

1.22.1-2~bpo10+1

1.22.1-2

1.23.0-1~bpo10+1

1.23.0-1

1.24.0-1~bpo10+1

1.24.0-1

1.24.0-2

1.25.0-1~bpo10+1

1.25.0-1

1.25.0-2

1.26.0-1~bpo10+1

1.26.0-1~bpo10+2

1.26.0-1~bpo10+3

1.26.0-1

1.26.0-2

1.26.0-3

1.27.0-1~bpo10+1

1.27.0-1~bpo10+2

1.27.0-1~bpo10+3

1.27.0-1

1.28.0-1~bpo10+1

1.28.0-1~bpo10+2

1.28.0-1

1.29.0-1

1.30.0-1

1.31.0-1

1.31.0-2

1.33.2-1

1.34.0-1

1.35.0-1

1.35.1-1

1.36.0-1

1.37.0-1

1.37.1-1

1.38.0-1

1.38.1-1

1.39.0-1

1.40.0-1~bpo10+1

1.40.0-1~bpo11+1

1.40.0-1

1.41.1-1~bpo10+1

1.41.1-1~bpo11+1

1.41.1-1

1.42.0-1~bpo10+1

1.42.0-1~bpo11+1

1.42.0-1

1.43.0-1~bpo10+1

1.43.0-1~bpo11+1

1.43.0-1

1.44.0-1~bpo10+1

1.44.0-1~bpo11+1

1.44.0-1

1.44.0-2

1.45.0-1

1.45.1-1~bpo10+1

1.45.1-1~bpo11+1

1.45.1-1

1.46.0-1~bpo10+1

1.46.0-1~bpo10+2

1.46.0-1~bpo11+1

1.46.0-1~bpo11+2

1.46.0-1~bpo11+3

1.46.0-1

1.47.0-1

1.47.0-2~bpo10+1

1.47.0-2~bpo11+1

1.47.0-2

1.47.1-1~bpo10+1

1.47.1-1~bpo11+1

1.47.1-1

1.48.0-1~bpo10+1

1.48.0-1~bpo11+1

1.48.0-1

1.49.0-1~bpo10+1

1.49.0-1~bpo10+2

1.49.0-1~bpo10+4

1.49.0-1~bpo11+1

1.49.0-1~bpo11+2

1.49.0-1~bpo11+3

1.49.0-1

1.49.2-1

1.50.0-1

1.50.1-1

1.50.2-1

1.51.0-1~bpo10+1

1.51.0-1~bpo10+2

1.51.0-1~bpo10+3

1.51.0-1~bpo11+1

1.51.0-1~bpo11+2

1.51.0-1

1.52.0-1~bpo10+1

1.52.0-1~bpo11+1

1.52.0-1

1.53.0-1~bpo11+1

1.53.0-1

1.55.0-1~bpo11+1

1.55.0-1

1.55.0-2

1.56.0-1

1.57.1-1~bpo11+1

1.57.1-1

1.59.1-1

1.59.1-2~bpo11+1

1.59.1-2

1.61.0-1~bpo11+1

1.61.0-1~bpo11+2

1.61.0-1~bpo11+3

1.61.0-1

1.61.0-2

1.61.0-3

1.61.1-1

1.63.0-1~bpo11+1

1.63.0-1

1.64.0-1

1.64.0-2

1.64.0-3

1.65.0-1

1.66.0-1~bpo11+1

1.66.0-1

1.66.0-2

1.68.0-1~bpo11+1

1.68.0-1

1.69.0-1~bpo11+1

1.69.0-1

1.70.1-1~bpo11+1

1.70.1-1

1.71.0-1

1.71.0-2~bpo11+1

1.71.0-2

1.72.0-1~bpo11+1

1.72.0-1

1.73.0-1~bpo11+1

1.73.0-1

1.74.0-1~bpo11+1

1.74.0-1~bpo11+2

1.74.0-1

1.77.0-1

1.78.0-1~bpo11+1

1.78.0-1

1.90.0-1

1.91.2-1

1.91.2-2~bpo12+1

1.91.2-2

1.92.0-1

1.92.0-2

1.92.0-3~bpo12+1

1.92.0-3

1.93.0-1

1.94.0-1~bpo12+1

1.94.0-1

1.95.0-1~bpo12+1

1.95.0-1

1.95.1-1~bpo12+1

1.95.1-1

1.97.0-1

1.99.0-1

1.99.0-2

1.99.0-3

1.100.0-1

1.103.0-1

Ecosystem specific

{
    "urgency": "not yet assigned"
}

Database specific

source

"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2024-31208.json"