Security Advisories (21)
CVE-2011-2728 (2012-12-21)

The bsd_glob function in the File::Glob module for Perl before 5.14.2 allows context-dependent attackers to cause a denial of service (crash) via a glob expression with the GLOB_ALTDIRFUNC flag, which triggers an uninitialized pointer dereference.

CVE-2020-12723 (2020-06-05)

regcomp.c in Perl before 5.30.3 allows a buffer overflow via a crafted regular expression because of recursive S_study_chunk calls.

CVE-2020-10878 (2020-06-05)

Perl before 5.30.3 has an integer overflow related to mishandling of a "PL_regkind[OP(n)] == NOTHING" situation. A crafted regular expression could lead to malformed bytecode with a possibility of instruction injection.

CVE-2020-10543 (2020-06-05)

Perl before 5.30.3 on 32-bit platforms allows a heap-based buffer overflow because nested regular expression quantifiers have an integer overflow.

CVE-2018-6913 (2018-04-17)

Heap-based buffer overflow in the pack function in Perl before 5.26.2 allows context-dependent attackers to execute arbitrary code via a large item count.

CVE-2018-18314 (2018-12-07)

Perl before 5.26.3 has a buffer overflow via a crafted regular expression that triggers invalid write operations.

CVE-2018-18313 (2018-12-07)

Perl before 5.26.3 has a buffer over-read via a crafted regular expression that triggers disclosure of sensitive information from process memory.

CVE-2018-18312 (2018-12-05)

Perl before 5.26.3 and 5.28.0 before 5.28.1 has a buffer overflow via a crafted regular expression that triggers invalid write operations.

CVE-2018-18311 (2018-12-07)

Perl before 5.26.3 and 5.28.x before 5.28.1 has a buffer overflow via a crafted regular expression that triggers invalid write operations.

CVE-2015-8853 (2016-05-25)

The (1) S_reghop3, (2) S_reghop4, and (3) S_reghopmaybe3 functions in regexec.c in Perl before 5.24.0 allow context-dependent attackers to cause a denial of service (infinite loop) via crafted utf-8 data, as demonstrated by "a\x80."

CVE-2013-1667 (2013-03-14)

The rehash mechanism in Perl 5.8.2 through 5.16.x allows context-dependent attackers to cause a denial of service (memory consumption and crash) via a crafted hash key.

CVE-2010-4777 (2014-02-10)

The Perl_reg_numbered_buff_fetch function in Perl 5.10.0, 5.12.0, 5.14.0, and other versions, when running with debugging enabled, allows context-dependent attackers to cause a denial of service (assertion failure and application exit) via crafted input that is not properly handled when using certain regular expressions, as demonstrated by causing SpamAssassin and OCSInventory to crash.

CVE-2012-5195 (2012-12-18)

Heap-based buffer overflow in the Perl_repeatcpy function in util.c in Perl 5.12.x before 5.12.5, 5.14.x before 5.14.3, and 5.15.x before 15.15.5 allows context-dependent attackers to cause a denial of service (memory consumption and crash) or possibly execute arbitrary code via the 'x' string repeat operator.

CVE-2016-2381 (2016-04-08)

Perl might allow context-dependent attackers to bypass the taint protection mechanism in a child process via duplicate environment variables in envp.

CVE-2013-7422 (2015-08-16)

Integer underflow in regcomp.c in Perl before 5.20, as used in Apple OS X before 10.10.5 and other products, allows context-dependent attackers to execute arbitrary code or cause a denial of service (application crash) via a long digit string associated with an invalid backreference within a regular expression.

CVE-2011-1487 (2011-04-11)

The (1) lc, (2) lcfirst, (3) uc, and (4) ucfirst functions in Perl 5.10.x, 5.11.x, and 5.12.x through 5.12.3, and 5.13.x through 5.13.11, do not apply the taint attribute to the return value upon processing tainted input, which might allow context-dependent attackers to bypass the taint protection mechanism via a crafted string.

CVE-2023-47100

In Perl before 5.38.2, S_parse_uniprop_string in regcomp.c can write to unallocated space because a property name associated with a \p{...} regular expression construct is mishandled. The earliest affected version is 5.30.0.

CVE-2024-56406 (2025-04-13)

A heap buffer overflow vulnerability was discovered in Perl. When there are non-ASCII bytes in the left-hand-side of the `tr` operator, `S_do_trans_invmap` can overflow the destination pointer `d`.    $ perl -e '$_ = "\x{FF}" x 1000000; tr/\xFF/\x{100}/;'    Segmentation fault (core dumped) It is believed that this vulnerability can enable Denial of Service and possibly Code Execution attacks on platforms that lack sufficient defenses.

CVE-2023-47039 (2023-10-30)

Perl for Windows relies on the system path environment variable to find the shell (cmd.exe). When running an executable which uses Windows Perl interpreter, Perl attempts to find and execute cmd.exe within the operating system. However, due to path search order issues, Perl initially looks for cmd.exe in the current working directory. An attacker with limited privileges can exploit this behavior by placing cmd.exe in locations with weak permissions, such as C:\ProgramData. By doing so, when an administrator attempts to use this executable from these compromised locations, arbitrary code can be executed.

CVE-2016-1238 (2016-08-02)

(1) cpan/Archive-Tar/bin/ptar, (2) cpan/Archive-Tar/bin/ptardiff, (3) cpan/Archive-Tar/bin/ptargrep, (4) cpan/CPAN/scripts/cpan, (5) cpan/Digest-SHA/shasum, (6) cpan/Encode/bin/enc2xs, (7) cpan/Encode/bin/encguess, (8) cpan/Encode/bin/piconv, (9) cpan/Encode/bin/ucmlint, (10) cpan/Encode/bin/unidump, (11) cpan/ExtUtils-MakeMaker/bin/instmodsh, (12) cpan/IO-Compress/bin/zipdetails, (13) cpan/JSON-PP/bin/json_pp, (14) cpan/Test-Harness/bin/prove, (15) dist/ExtUtils-ParseXS/lib/ExtUtils/xsubpp, (16) dist/Module-CoreList/corelist, (17) ext/Pod-Html/bin/pod2html, (18) utils/c2ph.PL, (19) utils/h2ph.PL, (20) utils/h2xs.PL, (21) utils/libnetcfg.PL, (22) utils/perlbug.PL, (23) utils/perldoc.PL, (24) utils/perlivp.PL, and (25) utils/splain.PL in Perl 5.x before 5.22.3-RC2 and 5.24 before 5.24.1-RC2 do not properly remove . (period) characters from the end of the includes directory array, which might allow local users to gain privileges via a Trojan horse module under the current working directory.

CVE-2015-8608 (2017-02-07)

The VDir::MapPathA and VDir::MapPathW functions in Perl 5.22 allow remote attackers to cause a denial of service (out-of-bounds read) and possibly execute arbitrary code via a crafted (1) drive letter or (2) pInName argument.

NAME

Pod::Html - module to convert pod files to HTML

SYNOPSIS

use Pod::Html;
pod2html([options]);

DESCRIPTION

Converts files from pod format (see perlpod) to HTML format. It can automatically generate indexes and cross-references, and it keeps a cache of things it knows how to cross-reference.

FUNCTIONS

pod2html

pod2html("pod2html",
         "--podpath=lib:ext:pod:vms",
         "--podroot=/usr/src/perl",
         "--htmlroot=/perl/nmanual",
         "--libpods=perlfunc:perlguts:perlvar:perlrun:perlop",
         "--recurse",
         "--infile=foo.pod",
         "--outfile=/perl/nmanual/foo.html");

pod2html takes the following arguments:

--backlink="Back to Top"

Adds "Back to Top" links in front of every head1 heading (except for the first). By default, no backlinks are generated.

cachedir
--cachedir=name

Creates the item and directory caches in the given directory.

css
--css=stylesheet

Specify the URL of a cascading style sheet. Also disables all HTML/CSS style attributes that are output by default (to avoid conflicts).

flush
--flush

Flushes the item and directory caches.

--header
--noheader

Creates header and footer blocks containing the text of the NAME section. By default, no headers are generated.

help
--help

Displays the usage message.

hiddendirs
--hiddendirs
--nohiddendirs

Include hidden directories in the search for POD's in podpath if recurse is set. The default is not to traverse any directory whose name begins with .. See "podpath" and "recurse".

[This option is for backward compatibility only. It's hard to imagine that one would usefully create a module with a name component beginning with ..]

htmldir
--htmldir=name

Sets the directory in which the resulting HTML file is placed. This is used to generate relative links to other files. Not passing this causes all links to be absolute, since this is the value that tells Pod::Html the root of the documentation tree.

htmlroot
--htmlroot=name

Sets the base URL for the HTML files. When cross-references are made, the HTML root is prepended to the URL.

index
--index
--noindex

Generate an index at the top of the HTML file. This is the default behaviour.

infile
--infile=name

Specify the pod file to convert. Input is taken from STDIN if no infile is specified.

libpods
--libpods=name:...:name

List of page names (eg, "perlfunc") which contain linkable =items.

netscape
--netscape
--nonetscape

Deprecated, has no effect. For backwards compatibility only.

outfile
--outfile=name

Specify the HTML file to create. Output goes to STDOUT if no outfile is specified.

podpath
--podpath=name:...:name

Specify which subdirectories of the podroot contain pod files whose HTML converted forms can be linked to in cross references.

podroot
--podroot=name

Specify the base directory for finding library pods.

quiet
--quiet
--noquiet

Don't display mostly harmless warning messages. These messages will be displayed by default. But this is not the same as verbose mode.

recurse
--recurse
--norecurse

Recurse into subdirectories specified in podpath (default behaviour).

title
--title=title

Specify the title of the resulting HTML file.

verbose
--verbose
--noverbose

Display progress messages. By default, they won't be displayed.

htmlify

htmlify($heading);

Converts a pod section specification to a suitable section specification for HTML. Note that we keep spaces and special characters except ", ? (Netscape problem) and the hyphen (writer's problem...).

anchorify

anchorify(@heading);

Similar to htmlify(), but turns non-alphanumerics into underscores. Note that anchorify() is not exported by default.

ENVIRONMENT

Uses $Config{pod2html} to setup default options.

AUTHOR

Tom Christiansen, <tchrist@perl.com>.

SEE ALSO

perlpod

COPYRIGHT

This program is distributed under the Artistic License.