1. Ubuntu Security Notices
  2. USN-5627-2

USN-5627-2: PCRE vulnerabilities

Publication date

22 September 2022

Overview

PCRE could be made to expose sensitive information.

Releases

Packages

  • pcre2 - Perl 5 Compatible Regular Expression Library

Details

USN-5627-1 fixed several vulnerabilities in PCRE. This update
provides the corresponding fixes for Ubuntu 18.04 ESM.

Original advisory details:

It was discovered that PCRE incorrectly handled memory when
handling certain regular expressions. An attacker could possibly
use this issue to cause applications using PCRE to expose
sensitive information.

USN-5627-1 fixed several vulnerabilities in PCRE. This update
provides the corresponding fixes for Ubuntu 18.04 ESM.

Original advisory details:

It was discovered that PCRE incorrectly handled memory when
handling certain regular expressions. An attacker could possibly
use this issue to cause applications using PCRE to expose
sensitive information.

Update instructions

After a standard system update you need to restart applications using PCRE, such as the Apache HTTP server and Nginx, to 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
18.04 bionic libpcre2-16-0 –  10.31-2ubuntu0.1~esm1  
libpcre2-32-0 –  10.31-2ubuntu0.1~esm1  
libpcre2-posix0 –  10.31-2ubuntu0.1~esm1  
pcre2-utils –  10.31-2ubuntu0.1~esm1  
libpcre2-8-0 –  10.31-2ubuntu0.1~esm1  

Reduce your security exposure

Ubuntu Pro provides ten-year security coverage to 25,000+ packages in Main and Universe repositories, and it is free for up to five machines.

Get Ubuntu Pro

References

Have additional questions?

Talk to a member of the team ›