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USN-5303-1: PHP vulnerability

28 February 2022

PHP could be made to crash or run programs if it received specially crafted input.



  • php7.4 - HTML-embedded scripting language interpreter
  • php8.0 - HTML-embedded scripting language interpreter


It was discovered that PHP incorrectly handled certain scripts.
An attacker could possibly use this issue to cause a denial of service,
or possibly execute arbitrary code.

Update instructions

The problem can be corrected by updating your system to the following package versions:

Ubuntu 21.10
Ubuntu 20.04

In general, a standard system update will make all the necessary changes.