CVE-2016-4343

moderate-risk

Published 2016-05-22

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.

Do I need to act?

7.6% chance of exploitation in next 30 days

EPSS score — moderate exploit probability

Not on CISA KEV list

No confirmed active exploitation reported to CISA

Patch status unknown

Check vendor advisories for fix availability and mitigation guidance

CVSS 8.8/10 High

NETWORK / LOW complexity

Affected Products (2)

Php

Opensuse

Affected Vendors

Php Opensuse

References (20)

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

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

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

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

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

Third Party Advisory http://www.securityfocus.com/bid/89179

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

Third Party Advisory https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c...

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

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

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

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

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

Third Party Advisory http://www.securityfocus.com/bid/89179

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

Third Party Advisory https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c...

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moderate-risk

Severity 30/34 · Critical

Exploitability 10/34 · Low

Exposure 7/34 · Low