CVE-2022-24801

NameCVE-2022-24801
DescriptionTwisted is an event-based framework for internet applications, supporting Python 3.6+. Prior to version 22.4.0rc1, the Twisted Web HTTP 1.1 server, located in the `twisted.web.http` module, parsed several HTTP request constructs more leniently than permitted by RFC 7230. This non-conformant parsing can lead to desync if requests pass through multiple HTTP parsers, potentially resulting in HTTP request smuggling. Users who may be affected use Twisted Web's HTTP 1.1 server and/or proxy and also pass requests through a different HTTP server and/or proxy. The Twisted Web client is not affected. The HTTP 2.0 server uses a different parser, so it is not affected. The issue has been addressed in Twisted 22.4.0rc1. Two workarounds are available: Ensure any vulnerabilities in upstream proxies have been addressed, such as by upgrading them; or filter malformed requests by other means, such as configuration of an upstream proxy.
SourceCVE (at NVD; CERT, LWN, oss-sec, fulldisc, bugtraq, EDB, Metasploit, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, Mageia, GitHub code/issues, web search, more)
ReferencesDLA-2991-1
Debian Bugs1009030

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
twisted (PTS)stretch16.6.0-2vulnerable
stretch (security)16.6.0-2+deb9u3fixed
buster18.9.0-3vulnerable
bullseye20.3.0-7vulnerable
bookworm, sid22.4.0-2fixed

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

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
twistedsourcestretch16.6.0-2+deb9u3DLA-2991-1
twistedsource(unstable)22.4.0-11009030

Notes

[bullseye] - twisted <no-dsa> (Minor issue)
[buster] - twisted <no-dsa> (Minor issue)
https://github.com/twisted/twisted/security/advisories/GHSA-c2jg-hw38-jrqq
https://github.com/twisted/twisted/releases/tag/twisted-22.4.0rc1
https://github.com/twisted/twisted/commit/592217e951363d60e9cd99c5bbfd23d4615043ac (twisted-22.04.0rc1)

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