Critical Security Advisory for Fedora 41's Matrix-Synapse Updates
Summary
Matrix is an ambitious new ecosystem for open federated Instant Messaging and
VoIP. Synapse is a reference "homeserver" implementation of Matrix from the
core development team at matrix.org, written in Python/Twisted. It is intended
to showcase the concept of Matrix and let folks see the spec in the context of
a coded base and let you run your own homeserver and generally help bootstrap
the ecosystem.
Update Information:
CVE-2024-52805, CVE-2024-52815, CVE-2024-53863, CVE-2024-53867 Backport fixes from v1.120.1
Change Log
* Tue Dec 3 2024 Kai A. Hiller
References
[ 1 ] Bug #2330235 - CVE-2024-52805 matrix-synapse: Synapse allows unsupported content types to lead to memory exhaustion [fedora-41]
https://bugzilla.redhat.com/show_bug.cgi?id=2330235
[ 2 ] Bug #2330236 - CVE-2024-53867 matrix-synapse: Synapse Matrix has a partial room state leak via Sliding Sync [fedora-41]
https://bugzilla.redhat.com/show_bug.cgi?id=2330236
[ 3 ] Bug #2330238 - CVE-2024-52815 matrix-synapse: A malformed invite can break the invitee's `/sync` [fedora-41]
https://bugzilla.redhat.com/show_bug.cgi?id=2330238
[ 4 ] Bug #2330240 - CVE-2024-53863 matrix-synapse: Synapse can be forced to thumbnail unexpected file formats, invoking external, potentially untrustworthy decoders [fedora-41]
https://bugzilla.redhat.com/show_bug.cgi?id=2330240
Update Instructions
This update can be installed with the "dnf" update program. Use su -c 'dnf upgrade --advisory FEDORA-2024-4cadba7a29' at the command line. For more information, refer to the dnf documentation available at http://dnf.readthedocs.io/en/latest/command_ref.html#upgrade-command-label