Home / mailings

PDF

[USN-8467-2] Perl vulnerabilities

Posted on 03 July 2026
Ubuntu Security

==========================================================================Ubuntu Security Notice USN-8467-2
July 02, 2026

perl vulnerabilities
==========================================================================
A security issue affects these releases of Ubuntu and its derivatives:

- Ubuntu 25.10

Summary:

Several security issues were fixed in Perl.

Software Description:
- perl: Practical Extraction and Report Language

Details:

USN-8467-1 fixed vulnerabilities in Perl. This update provides the
corresponding fix for Perl on Ubuntu 25.10.

Original advisory details:
It was discovered that Perl's Archive::Tar module incorrectly handled
symlink and hardlink targets during extraction. An attacker could use this
issue to read or overwrite arbitrary files outside the extraction
directory. (CVE-2026-42496)
It was discovered that Perl had a heap buffer overflow when compiling
regular expressions with a repeated fixed string on 32-bit builds. An
attacker could use this issue to cause a denial of service or possibly
execute arbitrary code. (CVE-2026-8376)

Update instructions:

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

Ubuntu 25.10
libperl-dev 5.40.1-6ubuntu0.1
libperl5.40 5.40.1-6ubuntu0.1
perl 5.40.1-6ubuntu0.1
perl-base 5.40.1-6ubuntu0.1
perl-debug 5.40.1-6ubuntu0.1
perl-modules-5.40 5.40.1-6ubuntu0.1

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

References:
https://ubuntu.com/security/notices/USN-8467-2
https://ubuntu.com/security/notices/USN-8467-1
CVE-2026-42496, CVE-2026-8376

Package Information:
https://launchpad.net/ubuntu/+source/perl/5.40.1-6ubuntu0.1

--===============7660950732206931284==Content-Type: application/pgp-signature; name="signature.asc"
Content-Description: OpenPGP digital signature

 

TOP