USN-6277-1: Dompdf vulnerabilities
8 August 2023
Several security issues were fixed in Dompdf.
Releases
Packages
- php-dompdf - HTML to PDF converter
Details
It was discovered that Dompdf was not properly validating untrusted input when
processing HTML content under certain circumstances. An attacker could
possibly use this issue to expose sensitive information or execute arbitrary
code. This issue only affected Ubuntu 16.04 LTS.
(CVE-2014-5011, CVE-2014-5012, CVE-2014-5013)
It was discovered that Dompdf was not properly validating processed HTML
content that referenced PHAR files, which could result in the deserialization
of untrusted data. An attacker could possibly use this issue to execute
arbitrary code. (CVE-2021-3838)
It was discovered that Dompdf was not properly validating processed HTML
content that referenced both a remote base and a local file, which could
result in the bypass of a chroot check. An attacker could possibly use this
issue to expose sensitive information. (CVE-2022-2400)
Update instructions
The problem can be corrected by updating your system to the following package versions:
Ubuntu 20.04
Ubuntu 18.04
-
php-dompdf
-
0.6.2+dfsg-3ubuntu0.18.04.1~esm1
Available with Ubuntu Pro
Ubuntu 16.04
-
php-dompdf
-
0.6.1+dfsg-2ubuntu1+esm1
Available with Ubuntu Pro
In general, a standard system update will make all the necessary changes.
Related notices
- USN-6277-2: php-dompdf