DescriptionWire-server is the system server for the wire back-end services. Releases prior to v2022-03-01 are subject to a denial of service attack via a crafted object causing a hash collision. This collision causes the server to spend at least quadratic time parsing it which can lead to a denial of service for a heavily used server. The issue has been fixed in wire-server 2022-03-01 and is already deployed on all Wire managed services. On premise instances of wire-server need to be updated to 2022-03-01, so that their backends are no longer affected. There are no known workarounds for this issue.
SourceCVE (at NVD; CERT, LWN, oss-sec, fulldisc, bugtraq, EDB, Metasploit, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, Mageia, GitHub advisories/code/issues, web search, more)
Debian Bugs1009678

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
haskell-aeson (PTS)buster1.3.1.1-3vulnerable
bookworm, sid2.0.3.0-1vulnerable

The information below is based on the following data on fixed versions.

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs


[bullseye] - haskell-aeson <no-dsa> (Minor issue)
[buster] - haskell-aeson <no-dsa> (Minor issue)
[stretch] - haskell-aeson <no-dsa> (Minor issue) (v2.0.1.0)

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