CVE-2015-4021

Name	CVE-2015-4021
Description	The phar_parse_tarfile function in ext/phar/tar.c in PHP before 5.4.41, 5.5.x before 5.5.25, and 5.6.x before 5.6.9 does not verify that the first character of a filename is different from the \0 character, which allows remote attackers to cause a denial of service (integer underflow and memory corruption) via a crafted entry in a tar archive.
Source	CVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)
References	DLA-307-1, DSA-3280-1

The information below is based on the following data on fixed versions.

Package	Type	Release	Fixed Version	Origin
php5	source	squeeze	5.3.3.1-7+squeeze27	DLA-307-1
php5	source	wheezy	5.4.41-0+deb7u1	DSA-3280-1
php5	source	jessie	5.6.9+dfsg-0+deb8u1	DSA-3280-1
php5	source	(unstable)	5.6.9+dfsg-1

Notes

https://bugs.php.net/bug.php?id=69453
https://git.php.net/?p=php-src.git;a=commit;h=c27f012b7a447e59d4a704688971cbfa7dddaa74
https://www.openwall.com/lists/oss-security/2015/05/17/2 and https://www.openwall.com/lists/oss-security/2015/05/18/2
Fixed upstream in 5.4.41, 5.5.25, 5.6.9