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THREATINT
PUBLISHED

CVE-2024-7592

Quadratic complexity parsing cookies with backslashes



AssignerPSF
Reserved2024-08-07
Published2024-08-19
Updated2024-09-04

Description

There is a LOW severity vulnerability affecting CPython, specifically the 'http.cookies' standard library module. When parsing cookies that contained backslashes for quoted characters in the cookie value, the parser would use an algorithm with quadratic complexity, resulting in excess CPU resources being used while parsing the value.

Problem types

CWE-400 Uncontrolled Resource Consumption

Product status

Default status
0x4002d7fc50

Any version
affected

References

https://github.com/python/cpython/pull/123075 patch

https://github.com/python/cpython/issues/123067 issue-tracking

https://mail.python.org/archives/list/security-announce@python.org/thread/HXJAAAALNUNGCQUS2W7WR6GFIZIHFOOK/ vendor-advisory

https://github.com/python/cpython/commit/391e5626e3ee5af267b97e37abc7475732e67621 patch

https://github.com/python/cpython/commit/dcc3eaef98cd94d6cb6cb0f44bd1c903d04f33b1 patch

https://github.com/python/cpython/commit/a77ab24427a18bff817025adb03ca920dc3f1a06 patch

https://github.com/python/cpython/commit/b2f11ca7667e4d57c71c1c88b255115f16042d9a patch

https://github.com/python/cpython/commit/d4ac921a4b081f7f996a5d2b101684b67ba0ed7f patch

https://github.com/python/cpython/commit/d662e2db2605515a767f88ad48096b8ac623c774 patch

cve.org CVE-2024-7592

nvd.nist.gov CVE-2024-7592

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