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[USN-7777-1] PCRE2 vulnerability

Posted on 25 September 2025
Ubuntu Security

==========================================================================Ubuntu Security Notice USN-7777-1
September 25, 2025

pcre2 vulnerability
==========================================================================
A security issue affects these releases of Ubuntu and its derivatives:

- Ubuntu 25.04

Summary:

PCRE2 could be made to expose sensitive information.

Software Description:
- pcre2: New Perl Compatible Regular Expression Library

Details:

It was discovered that PCRE2 incorrectly handled the Scan SubString verb.
An attacker could possibly use this issue to cause applications using PCRE2
to expose sensitive information.

Update instructions:

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

Ubuntu 25.04
libpcre2-16-0 10.45-1ubuntu0.1
libpcre2-32-0 10.45-1ubuntu0.1
libpcre2-8-0 10.45-1ubuntu0.1
libpcre2-posix3 10.45-1ubuntu0.1
pcre2-utils 10.45-1ubuntu0.1

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

References:
https://ubuntu.com/security/notices/USN-7777-1
CVE-2025-58050

Package Information:
https://launchpad.net/ubuntu/+source/pcre2/10.45-1ubuntu0.1

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