Security Advisories (24)
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-2010-1158 (2010-04-20)

Integer overflow in the regular expression engine in Perl 5.8.x allows context-dependent attackers to cause a denial of service (stack consumption and application crash) by matching a crafted regular expression against a long string.

CVE-2009-3626 (2009-10-29)

Perl 5.10.1 allows context-dependent attackers to cause a denial of service (application crash) via a UTF-8 character with a large, invalid codepoint, which is not properly handled during a regular-expression match.

CVE-2005-3962 (2005-12-01)

Integer overflow in the format string functionality (Perl_sv_vcatpvfn) in Perl 5.9.2 and 5.8.6 Perl allows attackers to overwrite arbitrary memory and possibly execute arbitrary code via format string specifiers with large values, which causes an integer wrap and leads to a buffer overflow, as demonstrated using format string vulnerabilities in Perl applications.

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

Test::Harness::Straps - detailed analysis of test results

SYNOPSIS

use Test::Harness::Straps;

my $strap = Test::Harness::Straps->new;

# Various ways to interpret a test
my %results = $strap->analyze($name, \@test_output);
my %results = $strap->analyze_fh($name, $test_filehandle);
my %results = $strap->analyze_file($test_file);

# UNIMPLEMENTED
my %total = $strap->total_results;

# Altering the behavior of the strap  UNIMPLEMENTED
my $verbose_output = $strap->dump_verbose();
$strap->dump_verbose_fh($output_filehandle);

DESCRIPTION

THIS IS ALPHA SOFTWARE in that the interface is subject to change in incompatible ways. It is otherwise stable.

Test::Harness is limited to printing out its results. This makes analysis of the test results difficult for anything but a human. To make it easier for programs to work with test results, we provide Test::Harness::Straps. Instead of printing the results, straps provide them as raw data. You can also configure how the tests are to be run.

The interface is currently incomplete. Please contact the author if you'd like a feature added or something change or just have comments.

CONSTRUCTION

new()

my $strap = Test::Harness::Straps->new;

Initialize a new strap.

$strap->_init

$strap->_init;

Initialize the internal state of a strap to make it ready for parsing.

ANALYSIS

$strap->analyze( $name, \@output_lines )

my %results = $strap->analyze($name, \@test_output);

Analyzes the output of a single test, assigning it the given $name for use in the total report. Returns the %results of the test. See Results.

@test_output should be the raw output from the test, including newlines.

$strap->analyze_fh( $name, $test_filehandle )

my %results = $strap->analyze_fh($name, $test_filehandle);

Like analyze, but it reads from the given filehandle.

$strap->analyze_file( $test_file )

my %results = $strap->analyze_file($test_file);

Like analyze, but it runs the given $test_file and parses its results. It will also use that name for the total report.

$strap->_command_line( $file )

Returns the full command line that will be run to test $file.

$strap->_command()

Returns the command that runs the test. Combine this with _switches() to build a command line.

Typically this is $^X, but you can set $ENV{HARNESS_PERL} to use a different Perl than what you're running the harness under. This might be to run a threaded Perl, for example.

You can also overload this method if you've built your own strap subclass, such as a PHP interpreter for a PHP-based strap.

$strap->_switches( $file )

Formats and returns the switches necessary to run the test.

$strap->_cleaned_switches( @switches_from_user )

Returns only defined, non-blank, trimmed switches from the parms passed.

$strap->_INC2PERL5LIB

local $ENV{PERL5LIB} = $self->_INC2PERL5LIB;

Takes the current value of @INC and turns it into something suitable for putting onto PERL5LIB.

$strap->_filtered_INC()

my @filtered_inc = $self->_filtered_INC;

Shortens @INC by removing redundant and unnecessary entries. Necessary for OSes with limited command line lengths, like VMS.

$strap->_restore_PERL5LIB()

$self->_restore_PERL5LIB;

This restores the original value of the PERL5LIB environment variable. Necessary on VMS, otherwise a no-op.

Parsing

Methods for identifying what sort of line you're looking at.

_is_diagnostic

my $is_diagnostic = $strap->_is_diagnostic($line, \$comment);

Checks if the given line is a comment. If so, it will place it into $comment (sans #).

_is_header

my $is_header = $strap->_is_header($line);

Checks if the given line is a header (1..M) line. If so, it places how many tests there will be in $strap->{max}, a list of which tests are todo in $strap->{todo} and if the whole test was skipped $strap->{skip_all} contains the reason.

_is_bail_out

my $is_bail_out = $strap->_is_bail_out($line, \$reason);

Checks if the line is a "Bail out!". Places the reason for bailing (if any) in $reason.

_reset_file_state

$strap->_reset_file_state;

Resets things like $strap->{max} , $strap->{skip_all}, etc. so it's ready to parse the next file.

Results

The %results returned from analyze() contain the following information:

passing           true if the whole test is considered a pass 
                  (or skipped), false if its a failure

exit              the exit code of the test run, if from a file
wait              the wait code of the test run, if from a file

max               total tests which should have been run
seen              total tests actually seen
skip_all          if the whole test was skipped, this will 
                    contain the reason.

ok                number of tests which passed 
                    (including todo and skips)

todo              number of todo tests seen
bonus             number of todo tests which 
                    unexpectedly passed

skip              number of tests skipped

So a successful test should have max == seen == ok.

There is one final item, the details.

details           an array ref reporting the result of 
                  each test looks like this:

  $results{details}[$test_num - 1] = 
          { ok          => is the test considered ok?
            actual_ok   => did it literally say 'ok'?
            name        => name of the test (if any)
            diagnostics => test diagnostics (if any)
            type        => 'skip' or 'todo' (if any)
            reason      => reason for the above (if any)
          };

Element 0 of the details is test #1. I tried it with element 1 being #1 and 0 being empty, this is less awkward.

EXAMPLES

See examples/mini_harness.plx for an example of use.

AUTHOR

Michael G Schwern <schwern@pobox.com>, currently maintained by Andy Lester <andy@petdance.com>.

SEE ALSO

Test::Harness