A php-dompdf security update has been released for Debian GNU/Linux 10 LTS to address multiple vulnerabilities.

[SECURITY] [DLA 3495-1] php-dompdf security update

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Debian LTS Advisory DLA-3495-1 debian-lts@lists.debian.org
https://www.debian.org/lts/security/ Bastien Roucariès
July 13, 2023 https://wiki.debian.org/LTS
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Package : php-dompdf
Version : 0.6.2+dfsg-3+deb10u1
CVE ID : CVE-2021-3838 CVE-2022-2400
Debian Bug : #1015874

Multiple vulnerabilies were fixed in php-dompdf a CSS 2.1 compliant HTML
to PDF converter, written in PHP.

CVE-2021-3838

php-dompdf was vulnerable to deserialization of Untrusted Data using
PHAR deserialization (phar://) as url for image.

CVE-2022-2400

php-dompdf was vulnerable to External Control of File Name bypassing
unallowed access verification.

For Debian 10 buster, these problems have been fixed in version
0.6.2+dfsg-3+deb10u1.

We recommend that you upgrade your php-dompdf packages.

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

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