USN-3857-1: PEAR vulnerability

USN-3857-1: PEAR vulnerability

php-pear vulnerability

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

  • Ubuntu 18.10
  • Ubuntu 18.04 LTS
  • Ubuntu 16.04 LTS

Summary

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PEAR could be made to run programs if it processed a specially crafted
file.

Software Description

  • php-pear – PHP Extension and Application Repository

Details

Fariskhi Vidyan discovered that PEAR Archive_Tar incorrectly handled
certain archive paths. 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 18.10
php-pear1:1.10.5+submodules+notgz-1ubuntu1.18.10.1
Ubuntu 18.04 LTS
php-pear1:1.10.5+submodules+notgz-1ubuntu1.18.04.1
Ubuntu 16.04 LTS
php-pear1:1.10.1+submodules+notgz-6ubuntu0.1

To update your system, please follow these instructions: https://wiki.ubuntu.com/Security/Upgrades.

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

References

Source: USN-3857-1: PEAR vulnerability

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