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Ubuntu 25.04: PCRE2 Critical Information Exposure USN-7777-1

ubuntu
Calendar Grey September 25, 2025
Dist Ubuntu Esm H88
Explore the recent PCRE2 vulnerability in Ubuntu 25.04, which may inadvertently expose private data. It's vital to apply suggested patches to reduce risks.
PCRE2 could be made to expose sensitive information.

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.

Topics%20covered

Topics Covered

security advisory critical threat Ubuntu information exposure pcre2

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

Severity
critical
Lowest
Low
Medium
High
Critical

Ubuntu Security Notice USN-7777-1

Topics%20covered

Topics Covered

security advisory critical threat Ubuntu information exposure pcre2

Package Information

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

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