vulnerability
Debian: CVE-2021-3733: pypy3, python3.9 -- security update
| Severity | CVSS | Published | Added | Modified |
|---|---|---|---|---|
| 4 | (AV:N/AC:L/Au:S/C:N/I:N/A:P) | Nov 29, 2021 | Nov 29, 2021 | Aug 15, 2025 |
Severity
4
CVSS
(AV:N/AC:L/Au:S/C:N/I:N/A:P)
Published
Nov 29, 2021
Added
Nov 29, 2021
Modified
Aug 15, 2025
Description
There's a flaw in urllib's AbstractBasicAuthHandler class. An attacker who controls a malicious HTTP server that an HTTP client (such as web browser) connects to, could trigger a Regular Expression Denial of Service (ReDOS) during an authentication request with a specially crafted payload that is sent by the server to the client. The greatest threat that this flaw poses is to application availability.
Solutions
debian-upgrade-pypy3debian-upgrade-python3-9no-fix-debian-deb-package
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