========================================================================== 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
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