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Fedora 44 Perl Critical Heap Buffer Overflow Information Leak Advisory

Fedora 44 Perl Critical Heap Buffer Overflow Information Leak Advisory

Linuxsecurity LinuxSecurity Advisories August 5, 2026

Audit Linux privileges now to limit compromise, escalation, and system-wide damage. Review Linux Privileges ×

Perl is a high-level programming language with roots in C, sed, awk and shell

scripting. Perl is good at handling processes and files, and is especially

good at handling text. Perl's hallmarks are practicality and efficiency.

While it is used to do a lot of different things, Perl's most common

applications are system administration utilities and web programming.

This is a metapackage with all the Perl bits and core modules that can be

found in the upstream tarball from perl.org.

If you need only a specific feature, you can install a specific package

instead. E.g. to handle Perl scripts with /usr/bin/perl interpreter,

install perl-interpreter package. See perl-interpreter description for more

details on the Perl decomposition into packages.

Update Perl to 5.42.3

* Mon Aug 3 2026 Jitka Plesnikova - 4:5.42.3-525 - 5.42.3 bump (see )

* Mon Aug 3 2026 Jitka Plesnikova - 4:5.42.3-525 - 5.42.3 bump (see )

[ 1 ] Bug #2489785 - CVE-2026-8376 perl: Perl: Heap buffer overflow when compiling regular expressions on 32-bit builds [fedora-all] [ 2 ] Bug #2506204 - CVE-2026-57432 perl: Perl: Information disclosure via integer overflow in pack/unpack operations [fedora-all]

This update can be installed with the "dnf" update program. Use su -c 'dnf upgrade --advisory FEDORA-2026-475559cbb9' at the command line. For more information, refer to the dnf documentation available at

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