PYSEC-2022-195

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Import Source
https://github.com/pypa/advisory-database/blob/main/vulns/twisted/PYSEC-2022-195.yaml
JSON Data
https://api.osv.dev/v1/vulns/PYSEC-2022-195
Aliases
Published
2022-04-04T18:15:00Z
Modified
2023-11-01T05:17:32.482779Z
Summary
[none]
Details

Twisted 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.

References

Affected packages

PyPI / twisted

Package

Affected ranges

Type
GIT
Repo
https://github.com/twisted/twisted
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed
Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
22.4.0

Affected versions

1.*

1.0.1
1.0.3
1.0.4
1.0.5
1.0.6
1.0.7
1.1.0
1.1.1
1.2.0

2.*

2.1.0
2.4.0
2.5.0

8.*

8.0.0
8.0.1
8.1.0
8.2.0

9.*

9.0.0

10.*

10.0.0
10.1.0
10.2.0

11.*

11.0.0
11.1.0

12.*

12.0.0
12.1.0
12.2.0
12.3.0

13.*

13.0.0
13.1.0
13.2.0

14.*

14.0.0
14.0.1
14.0.2

15.*

15.0.0
15.1.0
15.2.0
15.2.1
15.3.0
15.4.0
15.5.0

16.*

16.0.0
16.1.0
16.1.1
16.2.0
16.3.0
16.3.1
16.3.2
16.4.0
16.4.1
16.5.0rc1
16.5.0rc2
16.5.0
16.6.0rc1
16.6.0
16.7.0rc1
16.7.0rc2

17.*

17.1.0rc1
17.1.0
17.5.0
17.9.0rc1
17.9.0

18.*

18.4.0rc1
18.4.0
18.7.0rc1
18.7.0rc2
18.7.0
18.9.0rc1
18.9.0

19.*

19.2.0rc1
19.2.0rc2
19.2.0
19.2.1
19.7.0rc1
19.7.0
19.10.0rc1
19.10.0

20.*

20.3.0rc1
20.3.0

21.*

21.2.0rc1
21.2.0
21.7.0rc1
21.7.0rc2
21.7.0rc3
21.7.0

22.*

22.1.0rc1
22.1.0
22.2.0rc1
22.2.0
22.4.0rc1