CVE-2016-4343

Public Exploit

Description

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.

Category

8.8
CVSS
Severity: High
CVSS 3.1 •
CVSS 2.0 •
EPSS 15.62% Top 10%
Vendor Advisory redhat.com Vendor Advisory opensuse.org Vendor Advisory php.net Vendor Advisory php.net Vendor Advisory php.net
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05320149 third party advisory
http://php.net/ChangeLog-5.php release notes vendor advisory
https://bugs.php.net/bug.php?id=71331 issue tracking exploit vendor advisory
http://rhn.redhat.com/errata/RHSA-2016-2750.html third party advisory vendor advisory
http://php.net/ChangeLog-7.php release notes vendor advisory
http://www.openwall.com/lists/oss-security/2016/04/28/2 third party advisory mailing list
http://www.securityfocus.com/bid/89179 vdb entry third party advisory
https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05390722 third party advisory
https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05240731 third party advisory
http://lists.opensuse.org/opensuse-updates/2016-05/msg00086.html mailing list third party advisory vendor advisory

Frequently Asked Questions

What is the severity of CVE-2016-4343?
CVE-2016-4343 has been scored as a high severity vulnerability.
How to fix CVE-2016-4343?
To fix CVE-2016-4343, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2016-4343 being actively exploited in the wild?
It is possible that CVE-2016-4343 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~16% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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