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Debian LTS Advisory DLA-3883-1                debian-lts@lists.debian.org
https://www.debian.org/lts/security/                           Chris Lamb
September 09, 2024                            https://wiki.debian.org/LTS
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Package        : python-jwcrypto
Version        : 0.8.0-1+deb11u1
CVE ID         : CVE-2024-28102
Debian Bug     : 1065688

It was discovered that there was a potential denial of service (DoS)
attack in python-jwcrypto, an implementation of JSON Web Encryption
and similar object signing standards.

This could have been exploited by passing python-jwcrypto a malicious
JWE token with a high compression ratio. When the server processed
said token, it would have consumed a lot of memory and processing
time.

For Debian 11 bullseye, this problem has been fixed in version
0.8.0-1+deb11u1.

We recommend that you upgrade your python-jwcrypto packages.

For the detailed security status of python-jwcrypto please refer to
its security tracker page at:
https://security-tracker.debian.org/tracker/python-jwcrypto

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