[USN-6112-2] Perl vulnerability
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Ubuntu Security Notice USN-6112-2
June 05, 2023
perl vulnerability
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A security issue affects these releases of Ubuntu and its derivatives:
- Ubuntu 23.04
- Ubuntu 22.10
- Ubuntu 22.04 LTS
- Ubuntu 20.04 LTS
Summary:
Perl could be made to install modules from untrusted sources.
Software Description:
- perl: Practical Extraction and Report Language
Details:
USN-6112-1 fixed vulnerabilities in Perl. This update provides the
corresponding updates for Ubuntu 20.04 LTS, Ubuntu 22.04 LTS, Ubuntu
22.10, and Ubuntu 23.04.
Original advisory details:
It was discovered that Perl was not properly verifying TLS certificates
when using CPAN together with HTTP::Tiny to download modules over HTTPS.
If a remote attacker were able to intercept communications, this flaw
could potentially be used to install altered modules.
Update instructions:
The problem can be corrected by updating your system to the following
package versions:
Ubuntu 23.04:
perl 5.36.0-7ubuntu0.23.04.1
Ubuntu 22.10:
perl 5.34.0-5ubuntu1.2
Ubuntu 22.04 LTS:
perl 5.34.0-3ubuntu1.2
Ubuntu 20.04 LTS:
perl 5.30.0-9ubuntu0.4
In general, a standard system update will make all the necessary changes.
References:
https://ubuntu.com/security/notices/USN-6112-2
https://ubuntu.com/security/notices/USN-6112-1
CVE-2023-31484
Package Information:
https://launchpad.net/ubuntu/+source/perl/5.36.0-7ubuntu0.23.04.1
https://launchpad.net/ubuntu/+source/perl/5.34.0-5ubuntu1.2
https://launchpad.net/ubuntu/+source/perl/5.34.0-3ubuntu1.2
https://launchpad.net/ubuntu/+source/perl/5.30.0-9ubuntu0.4
A Perl security update has been released for Ubuntu Linux 20.04 LTS, 22.04 LTS, 22.10, and 23.04.
