[USN-5027-1] PEAR vulnerability

Marc Deslauriers marc.deslauriers at canonical.com
Thu Jul 29 17:11:52 UTC 2021

Ubuntu Security Notice USN-5027-1
July 29, 2021

php-pear vulnerability

A security issue affects these releases of Ubuntu and its derivatives:

- Ubuntu 21.04
- Ubuntu 20.04 LTS
- Ubuntu 18.04 LTS


PEAR could be made to overwrite files as the administrator.

Software Description:
- 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 21.04:
  php-pear                        1:1.10.9+submodules+notgz-1.1ubuntu1.1

Ubuntu 20.04 LTS:
  php-pear                        1:1.10.9+submodules+notgz-1ubuntu0.20.04.3

Ubuntu 18.04 LTS:
  php-pear                        1:1.10.5+submodules+notgz-1ubuntu1.18.04.4

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


Package Information:




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