DEBIAN-CVE-2023-43796

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Source

https://security-tracker.debian.org/tracker/CVE-2023-43796

Import Source

https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2023-43796.json

JSON Data

https://api.osv.dev/v1/vulns/DEBIAN-CVE-2023-43796

Upstream

CVE-2023-43796

Published

2023-10-31T17:15:23Z

Modified

2025-10-16T06:33:00.389346Z

Severity

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

Summary

[none]

Details

Synapse is an open-source Matrix homeserver Prior to versions 1.95.1 and 1.96.0rc1, cached device information of remote users can be queried from Synapse. This can be used to enumerate the remote users known to a homeserver. System administrators are encouraged to upgrade to Synapse 1.95.1 or 1.96.0rc1 to receive a patch. As a workaround, the federation_domain_whitelist can be used to limit federation traffic with a homeserver.

References

https://security-tracker.debian.org/tracker/CVE-2023-43796

Affected packages

Debian:14 / matrix-synapse

Package

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

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0Unknown introduced version / All previous versions are affected

Fixed

1.95.1-1

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

Ecosystem specific

{
    "urgency": "not yet assigned"
}