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.
Affected products
Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.
Python Software Foundation CPython
Default version status: unaffected
0 to < 3.8.20affected3.9.0 to < 3.9.20affected3.10.0 to < 3.10.15affected3.11.0 to < 3.11.10affected3.12.0 to < 3.12.6affected3.13.0a1 to < 3.13.0rc2affected
References
- https://github.com/python/cpython/pull/123075 ↗
- https://github.com/python/cpython/issues/123067 ↗
- https://mail.python.org/archives/list/security-announce@python.org/thread/HXJAAAALNUNGCQUS2W7WR6GFIZIHFOOK/ ↗
- https://github.com/python/cpython/commit/391e5626e3ee5af267b97e37abc7475732e67621 ↗
- https://github.com/python/cpython/commit/dcc3eaef98cd94d6cb6cb0f44bd1c903d04f33b1 ↗
- https://github.com/python/cpython/commit/a77ab24427a18bff817025adb03ca920dc3f1a06 ↗
- https://github.com/python/cpython/commit/b2f11ca7667e4d57c71c1c88b255115f16042d9a ↗
- https://github.com/python/cpython/commit/d4ac921a4b081f7f996a5d2b101684b67ba0ed7f ↗
- https://github.com/python/cpython/commit/d662e2db2605515a767f88ad48096b8ac623c774 ↗
- https://github.com/python/cpython/commit/44e458357fca05ca0ae2658d62c8c595b048b5ef ↗
- https://security.netapp.com/advisory/ntap-20241018-0006/ ↗
- https://lists.debian.org/debian-lts-announce/2024/12/msg00000.html ↗