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perl-5.44.0
⭐ Starred 2013 / Pod::Simple::DumpAsXML
Security Advisories (1)
CVE-2026-15534 (2026-08-09)

Perl versions through 5.45.1 have out-of-bounds heap reads and writes during regular expression matching via an undersized superlinear cache in S_regmatch. The regex engine's superlinear cache holds one bit per subject position for each participating WHILEM node, so the bit count is the subject length plus one times the number of nodes. Nothing checks that product for positive overflow of the signed 32-bit count: a 286331153 byte subject matched against a pattern with 15 participating nodes stores the count as 14, leaving a two byte cache. The cache is then indexed from the real match position and node number, so reads go past the end of the allocation, and on failure CACHEsayNO sets a bit past it. A caller that matches an attacker controlled subject of this size against a pattern of this shape can crash the process or corrupt heap memory.

NAME

Pod::Simple::DumpAsXML -- turn Pod into XML

SYNOPSIS

perl -MPod::Simple::DumpAsXML -e \
 "exit Pod::Simple::DumpAsXML->filter(shift)->any_errata_seen" \
 thingy.pod

DESCRIPTION

Pod::Simple::DumpAsXML is a subclass of Pod::Simple that parses Pod and turns it into indented and wrapped XML. This class is of interest to people writing Pod formatters based on Pod::Simple.

Pod::Simple::DumpAsXML inherits methods from Pod::Simple.

SEE ALSO

Pod::Simple::XMLOutStream is rather like this class. Pod::Simple::XMLOutStream's output is space-padded in a way that's better for sending to an XML processor (that is, it has no ignorable whitespace). But Pod::Simple::DumpAsXML's output is much more human-readable, being (more-or-less) one token per line, with line-wrapping.

Pod::Simple::DumpAsText is rather like this class, except that it doesn't dump with XML syntax. Try them and see which one you like best!

Pod::Simple, Pod::Simple::DumpAsXML

The older libraries Pod::PXML, Pod::XML, Pod::SAX

SUPPORT

Questions or discussion about POD and Pod::Simple should be sent to the pod-people@perl.org mail list. Send an empty email to pod-people-subscribe@perl.org to subscribe.

This module is managed in an open GitHub repository, https://github.com/perl-pod/pod-simple/. Feel free to fork and contribute, or to clone https://github.com/perl-pod/pod-simple.git and send patches!

Patches against Pod::Simple are welcome. Please send bug reports to <bug-pod-simple@rt.cpan.org>.

COPYRIGHT AND DISCLAIMERS

Copyright (c) 2002 Sean M. Burke.

This library is free software; you can redistribute it and/or modify it under the same terms as Perl itself.

This program is distributed in the hope that it will be useful, but without any warranty; without even the implied warranty of merchantability or fitness for a particular purpose.

AUTHOR

Pod::Simple was created by Sean M. Burke <sburke@cpan.org>. But don't bother him, he's retired.

Pod::Simple is maintained by:

  • Allison Randal allison@perl.org

  • Hans Dieter Pearcey hdp@cpan.org

  • David E. Wheeler dwheeler@cpan.org