Your submission was sent successfully! Close

USN-4723-1: PEAR vulnerability

8 February 2021

PEAR could be made to overwrite files as the administrator.



  • php-pear - PHP Extension and Application Repository


It was discovered that PEAR incorrectly handled symbolic links in archives.
A remote attacker could possibly use this issue to execute arbitrary code.

Update instructions

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

Ubuntu 20.10
Ubuntu 20.04
Ubuntu 18.04
Ubuntu 16.04

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