/ 
perl-5.14.3
⭐ Starred 2013
/ OS2::PrfDB
Security Advisories (18)
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-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-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

OS2::PrfDB - Perl extension for access to OS/2 setting database.

SYNOPSIS

use OS2::PrfDB;
tie %settings, OS2::PrfDB, 'my.ini';
tie %subsettings, OS2::PrfDB::Sub, 'my.ini', 'mykey';

print "$settings{firstkey}{subkey}\n";
print "$subsettings{subkey}\n";

tie %system, OS2::PrfDB, SystemIni;
$system{myapp}{mykey} = "myvalue";

DESCRIPTION

The extension provides both high-level and low-level access to .ini files.

High level access

High-level access is the tie-hash access via two packages: OS2::PrfDB and OS2::PrfDB::Sub. First one supports one argument, the name of the file to open, the second one the name of the file to open and so called Application name, or the primary key of the database.

tie %settings, OS2::PrfDB, 'my.ini';
tie %subsettings, OS2::PrfDB::Sub, 'my.ini', 'mykey';

One may substitute a handle for already opened ini-file instead of the file name (obtained via low-level access functions). In particular, 3 functions SystemIni(), UserIni(), and AnyIni() provide handles to the "systemish" databases. AniIni will read from both, and write into User database.

Low-level access

Low-level access functions reside in the package OS2::Prf. They are

Open(file)

Opens the database, returns an integer handle.

Close(hndl)

Closes the database given an integer handle.

Get(hndl, appname, key)

Retrieves data from the database given 2-part-key appname key. If key is undef, return the "\0" delimited list of keys, terminated by \0. If appname is undef, returns the list of possible appnames in the same form.

GetLength(hndl, appname, key)

Same as above, but returns the length of the value.

Set(hndl, appname, key, value [ , length ])

Sets the value. If the value is not defined, removes the key. If the key is not defined, removes the appname.

System(val)

Return an integer handle associated with the system database. If val is 1, it is User database, if 2, System database, if 0, handle for "both" of them: the handle works for read from any one, and for write into User one.

Profiles()

returns a reference to a list of two strings, giving names of the User and System databases.

SetUser(file)

(Not tested.) Sets the profile name of the User database. The application should have a message queue to use this function!

Integer handles

To convert a name or an integer handle into an object acceptable as argument to tie() interface, one may use the following functions from the package OS2::Prf::Hini:

new(package, file)
new_from_int(package, int_hndl [ , filename ])

Exports

SystemIni(), UserIni(), and AnyIni().

AUTHOR

Ilya Zakharevich, ilya@math.ohio-state.edu

SEE ALSO

perl(1).