1. Ubuntu Security Notices
  2. USN-6053-1

USN-6053-1: PHP vulnerability

Publication date

2 May 2023

Overview

PHP could be made to bypass password checking if a specially crafted input was provided.

Releases

Packages

  • php7.0 - HTML-embedded scripting language interpreter

Details

It was discovered that PHP incorrectly handled certain invalid Blowfish
password hashes. An invalid password hash could possibly allow applications to
accept any password as valid, contrary to expectations.

It was discovered that PHP incorrectly handled certain invalid Blowfish
password hashes. An invalid password hash could possibly allow applications to
accept any password as valid, contrary to expectations.

Update instructions

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

Learn more about how to get the fixes.

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

Ubuntu Release Package Version
16.04 xenial php7.0-cgi –  7.0.33-0ubuntu0.16.04.16+esm6  
php7.0-fpm –  7.0.33-0ubuntu0.16.04.16+esm6  
php7.0-cli –  7.0.33-0ubuntu0.16.04.16+esm6  
libapache2-mod-php7.0 –  7.0.33-0ubuntu0.16.04.16+esm6  
php7.0 –  7.0.33-0ubuntu0.16.04.16+esm6  

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References

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