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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/source-package/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