CVE-2016-4343 Null dereference in n/a

High 8.8 Published Updated

Remote attackers can cause denial of service via crafted TAR archives due to uninitialized pointer dereference in PHP's phar extension.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Over the internet
Victim action needed
A user has to click or open something
Fix
Available

What is CVE-2016-4343?

CVE-2016-4343 is a high-severity vulnerability in Opensuse Opensuse, published on 22 May 2016. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.

Official 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.

Weakness: CWE-824

Which versions are affected by CVE-2016-4343?

It affects 2 products.

Products include Opensuse Opensuse, Php Php.

How do I fix CVE-2016-4343?

Upgrade to a fixed version.

Is CVE-2016-4343 being exploited?

There is no known exploitation of CVE-2016-4343 in the wild and no public exploit code.

All Opensuse Opensuse vulnerabilities

Sources

Also known as GHSA-957h-v895-rv7p, UBUNTU-CVE-2016-4343.

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