Stack-based buffer overflow in the phar_fix_filepath function in ext/phar/phar.c in PHP before 5.4.43, 5.5.x before 5.5.27, and 5.6.x before 5.6.11 allows remote attackers to cause a denial of service or possibly have unspecified other impact via a large length value, as demonstrated by mishandling of an e-mail attachment by the imap PHP extension.
http://git.php.net/?p=php-src.git;a=commit;h=6dedeb40db13971af45276f80b5375030aa7e76f
http://openwall.com/lists/oss-security/2015/07/18/1
http://www.debian.org/security/2015/dsa-3344
http://www.php.net/ChangeLog-5.php
Source: MITRE
Published: 2016-01-19
Updated: 2017-11-04
Type: CWE-119
Base Score: 7.5
Vector: AV:N/AC:L/Au:N/C:P/I:P/A:P
Impact Score: 6.4
Exploitability Score: 10
Severity: HIGH
Base Score: 7.3
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
Impact Score: 3.4
Exploitability Score: 3.9
Severity: HIGH