ELA-1121-1 python-idna security update

denial of service

2024-07-03
Packagepython-idna
Version2.2-1+deb9u1 (stretch)
Related CVEs CVE-2024-3651


Guido Vranken discovered an issue in python3-idna, a library to support the Internationalized Domain Names in Applications (IDNA) protocol. A specially crafted argument to the idna.encode() function could consume significant resources, which may lead to Denial of Service.



For Debian 9 stretch, these problems have been fixed in version 2.2-1+deb9u1.

We recommend that you upgrade your python-idna packages.

Further information about Extended LTS security advisories can be found in the dedicated section of our website.