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Debian LTS Advisory DLA-3998-1 debian-lts@lists.debian.org
https://www.debian.org/lts/security/ Guilhem Moulin
December 21, 2024 https://wiki.debian.org/LTS
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Package : python-urllib3
Version : 1.26.5-1~exp1+deb11u1
CVE ID : CVE-2023-43804 CVE-2023-45803 CVE-2024-37891
Debian Bug : 1053626 1054226 1074149 1089507
Multiple vulnerabilities were found in python-urllib3, an HTTP library
with thread-safe connection pooling for Python, which could lead to
information disclosure or authorization bypass.
CVE-2023-43804
It was discovered that the cookie request header wasn't stripped
during cross-origin redirects. It is therefore possible for a user
to specify a Cookie header and unknowingly leak information via HTTP
redirects to a different origin if redirection isn't explicitly
disabled.
CVE-2023-45803
It was discovered that the request body wasn't stripped when an HTTP
redirect response using status 303 "See Other", after the request
had its method changed from one that could accept a request body
(like POST) to GET as is required by HTTP RFCs.
CVE-2024-37891
It was discovered that the Proxy-Authorization request header isn't
stripped during cross-origin redirects, when urllib3 is used without
proxy support.
For Debian 11 bullseye, these problems have been fixed in version
1.26.5-1~exp1+deb11u1.
We recommend that you upgrade your python-urllib3 packages.
For the detailed security status of python-urllib3 please refer to
its security tracker page at:
https://security-tracker.debian.org/tracker/python-urllib3
Further information about Debian LTS security advisories, how to apply
these updates to your system and frequently asked questions can be
found at: https://wiki.debian.org/LTS
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