Security Advisories (1)
CVE-2025-40909 (2025-05-30)

Perl threads have a working directory race condition where file operations may target unintended paths. If a directory handle is open at thread creation, the process-wide current working directory is temporarily changed in order to clone that handle for the new thread, which is visible from any third (or more) thread already running. This may lead to unintended operations such as loading code or accessing files from unexpected locations, which a local attacker may be able to exploit. The bug was introduced in commit 11a11ecf4bea72b17d250cfb43c897be1341861e and released in Perl version 5.13.6

NAME

ptar - a tar-like program written in perl

DESCRIPTION

ptar is a small, tar look-alike program that uses the perl module Archive::Tar to extract, create and list tar archives.

SYNOPSIS

ptar -c [-v] [-z] [-C] [-f ARCHIVE_FILE | -] FILE FILE ...
ptar -c [-v] [-z] [-C] [-T index | -] [-f ARCHIVE_FILE | -]
ptar -x [-v] [-z] [-f ARCHIVE_FILE | -]
ptar -t [-z] [-f ARCHIVE_FILE | -]
ptar -h

OPTIONS

c   Create ARCHIVE_FILE or STDOUT (-) from FILE
x   Extract from ARCHIVE_FILE or STDIN (-)
t   List the contents of ARCHIVE_FILE or STDIN (-)
f   Name of the ARCHIVE_FILE to use. Default is './default.tar'
z   Read/Write zlib compressed ARCHIVE_FILE (not always available)
v   Print filenames as they are added or extracted from ARCHIVE_FILE
h   Prints this help message
C   CPAN mode - drop 022 from permissions
T   get names to create from file

SEE ALSO

tar(1), Archive::Tar.