CVE-2015-5589
CRITICAL severity · CVSS 9.8 · Improper input validation
9.8CVSS CRITICAL
Summary
The phar_convert_to_other function in ext/phar/phar_object.c in PHP before 5.4.43, 5.5.x before 5.5.27, and 5.6.x before 5.6.11 does not validate a file pointer before a close operation, which allows remote attackers to cause a denial of service (segmentation fault) or possibly have unspecified other impact via a crafted TAR archive that is mishandled in a Phar::convertToData call.
Impact & exploitability
Attack vectorNetwork
Attack complexityLow
Privileges requiredNone
User interactionNone
Confidentiality impactHigh
Integrity impactHigh
Availability impactHigh
Exploit probability (EPSS)6%
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Affected products we track (1)
Recommendation
Apply the vendor fix promptly. Open any affected product above for its exact safe version.
Additional information
- NVD record
- http://git.php.net/?p=php-src.git%3Ba=commit%3Bh=bf58162ddf970f63502837f366930e44d6a992cf
- http://openwall.com/lists/oss-security/2015/07/18/1
- http://php.net/ChangeLog-5.php
- http://www.debian.org/security/2015/dsa-3344
- http://www.securityfocus.com/bid/75974
- https://bugs.php.net/bug.php?id=69958