Debian Bug report logs -
#1069763
matrix-synapse: CVE-2024-31208
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to debian-bugs-dist@lists.debian.org, team@security.debian.org, Matrix Packaging Team <pkg-matrix-maintainers@lists.alioth.debian.org>:
Bug#1069763; Package src:matrix-synapse.
(Wed, 24 Apr 2024 11:45:06 GMT) (full text, mbox, link).
Acknowledgement sent
to Moritz Mühlenhoff <jmm@inutil.org>:
New Bug report received and forwarded. Copy sent to team@security.debian.org, Matrix Packaging Team <pkg-matrix-maintainers@lists.alioth.debian.org>.
(Wed, 24 Apr 2024 11:45:06 GMT) (full text, mbox, link).
Message #5 received at submit@bugs.debian.org (full text, mbox, reply):
Source: matrix-synapse
X-Debbugs-CC: team@security.debian.org
Severity: grave
Tags: security
Hi,
The following vulnerability was published for matrix-synapse.
CVE-2024-31208[0]:
| 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.
https://github.com/element-hq/synapse/security/advisories/GHSA-3h7q-rfh9-xm4v
https://github.com/element-hq/synapse/commit/55b0aa847a61774b6a3acdc4b177a20dc019f01a (v1.105.1)
If you fix the vulnerability please also make sure to include the
CVE (Common Vulnerabilities & Exposures) id in your changelog entry.
For further information see:
[0] https://security-tracker.debian.org/tracker/CVE-2024-31208
https://www.cve.org/CVERecord?id=CVE-2024-31208
Please adjust the affected versions in the BTS as needed.
Added tag(s) upstream.
Request was from Salvatore Bonaccorso <carnil@debian.org>
to control@bugs.debian.org.
(Thu, 25 Apr 2024 06:21:03 GMT) (full text, mbox, link).
Marked as found in versions matrix-synapse/1.103.0-1.
Request was from Salvatore Bonaccorso <carnil@debian.org>
to control@bugs.debian.org.
(Thu, 25 Apr 2024 06:21:03 GMT) (full text, mbox, link).
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Thu Apr 25 11:54:21 2024;
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