CVE-2016-4343
HIGH severity · CVSS 8.8 · CWE-824
8.8CVSS HIGH
Summary
The phar_make_dirstream function in ext/phar/dirstream.c in PHP before 5.6.18 and 7.x before 7.0.3 mishandles zero-size ././@LongLink files, which allows remote attackers to cause a denial of service (uninitialized pointer dereference) or possibly have unspecified other impact via a crafted TAR archive.
Impact & exploitability
Attack vectorNetwork
Attack complexityLow
Privileges requiredNone
User interactionRequired
Confidentiality impactHigh
Integrity impactHigh
Availability impactHigh
Exploit probability (EPSS)4%
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/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://php.net/ChangeLog-5.phpAdvisory
- http://php.net/ChangeLog-7.phpAdvisory
- https://bugs.php.net/bug.php?id=71331Advisory
- http://lists.opensuse.org/opensuse-updates/2016-05/msg00086.htmlAdvisory
- http://rhn.redhat.com/errata/RHSA-2016-2750.htmlAdvisory
- http://www.openwall.com/lists/oss-security/2016/04/28/2Advisory
- http://www.securityfocus.com/bid/89179Advisory
- https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05240731Advisory