[SECURITY] [DLA 3856-1] python-html-sanitizer security update
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Debian LTS Advisory DLA-3856-1 debian-lts@lists.debian.org
https://www.debian.org/lts/security/ Chris Lamb
August 26, 2024 https://wiki.debian.org/LTS
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Package : python-html-sanitizer
Version : 1.9.1-2+deb11u1
CVE ID : CVE-2024-34078
Debian Bug : 1070710
It was discovered that there was a sanitisation bypass issue in
python-html-sanitizer, a library used ensure that user-specified
content cannot inject HTML or JavaScript into a webpage.
If the default "keep_typographic_whitespace=False" value was set,
malicous users could have exploited the fact that some Unicode
characters normalise to chevrons, which allowed specially-crafted
HTML to escape sanitization.
For Debian 11 bullseye, this problem has been fixed in version
1.9.1-2+deb11u1.
We recommend that you upgrade your python-html-sanitizer packages.
For the detailed security status of python-html-sanitizer please refer to
its security tracker page at:
https://security-tracker.debian.org/tracker/python-html-sanitizer
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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