CVE-2016-4343

high

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.

References

http://php.net/ChangeLog-7.php

http://php.net/ChangeLog-5.php

https://bugs.php.net/bug.php?id=71331

http://www.openwall.com/lists/oss-security/2016/04/28/2

https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05240731

https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05320149

http://www.securityfocus.com/bid/89179

http://lists.opensuse.org/opensuse-updates/2016-05/msg00086.html

https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05390722

http://rhn.redhat.com/errata/RHSA-2016-2750.html

Details

Source: MITRE

Published: 2016-05-22

Updated: 2022-07-20

Type: CWE-824

Risk Information

CVSS v2

Base Score: 6.8

Vector: AV:N/AC:M/Au:N/C:P/I:P/A:P

Impact Score: 6.4

Exploitability Score: 8.6

Severity: MEDIUM

CVSS v3

Base Score: 8.8

Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Impact Score: 5.9

Exploitability Score: 2.8

Severity: HIGH