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Alerts This Week
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Ubuntu 25.04: Perl Critical File Access Issue CVE-2025-40909

ubuntu
Calendar Grey July 29, 2025
Dist Ubuntu Esm H88
Perl exposes significant risks through improper file handling paths that can be exploited. Update recommended.
Perl could be made to target unintended paths when performing file operations.

Summary

Perl could be made to target unintended paths when performing file

operations.

Software Description:

- perl: Practical Extraction and Report Language

Details:

It was discovered that Perl threads incorrectly handled certain file

operations. A local attacker could possibly use this issue to load code or

access files from unexpected locations.

Topics%20covered

Topics Covered

security advisory critical code execution Ubuntu perl file access

Update Instructions

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

Ubuntu 25.04
  perl                            5.40.1-2ubuntu0.2

Ubuntu 24.04 LTS
  perl                            5.38.2-3.2ubuntu0.2

Ubuntu 22.04 LTS
  perl                            5.34.0-3ubuntu1.5

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

References

https://ubuntu.com/security/notices/USN-7678-1

CVE-2025-40909

Severity
critical
Lowest
Low
Medium
High
Critical

Ubuntu Security Notice USN-7678-1

Topics%20covered

Topics Covered

security advisory critical code execution Ubuntu perl file access

Package Information

https://launchpad.net/ubuntu/+source/perl/5.40.1-2ubuntu0.2
https://launchpad.net/ubuntu/+source/perl/5.38.2-3.2ubuntu0.2
https://launchpad.net/ubuntu/+source/perl/5.34.0-3ubuntu1.5

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