Ubuntu 6538 Published by

A PEAR security update has been released for Ubuntu Linux 18.04 LTS, 20.04 LTS, and 21.04.



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

php-pear vulnerability
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A security issue affects these releases of Ubuntu and its derivatives:

- Ubuntu 21.04
- Ubuntu 20.04 LTS
- Ubuntu 18.04 LTS

Summary:

PEAR could be made to overwrite files as the administrator.

Software Description:
- php-pear: PHP Extension and Application Repository

Details:

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.

References:
  https://ubuntu.com/security/notices/USN-5027-1
CVE-2021-32610

Package Information:

  https://launchpad.net/ubuntu/+source/php-pear/1:1.10.9+submodules+notgz-1.1ubuntu1.1

  https://launchpad.net/ubuntu/+source/php-pear/1:1.10.9+submodules+notgz-1ubuntu0.20.04.3

  https://launchpad.net/ubuntu/+source/php-pear/1:1.10.5+submodules+notgz-1ubuntu1.18.04.4