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[SECURITY] [DLA 3664-1] symfony security update

Debian LTS Advisory DLA-3664-1                debian-lts@lists.debian.org
https://www.debian.org/lts/security/                      Markus Koschany
November 24, 2023                             https://wiki.debian.org/LTS

Package        : symfony
Version        : 3.4.22+dfsg-2+deb10u3
CVE ID         : CVE-2023-46734
Debian Bug     : 1055774

Pierre Rudloff discovered a potential XSS vulnerability in Symfony, a PHP
framework. Some Twig filters in CodeExtension use `is_safe=html` but do not
actually ensure their input is safe. Symfony now escapes the output of the
affected filters.

For Debian 10 buster, this problem has been fixed in version

We recommend that you upgrade your symfony packages.

For the detailed security status of symfony please refer to
its security tracker page at:

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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