CVE-2016-5399 Memory corruption in n/a

High 7.8 Published Updated

Remote attackers can execute arbitrary code or cause denial of service via a crafted bz2 archive processed by the PHP bz2 extension.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Local or same network only
Victim action needed
A user has to click or open something
Fix
Available

What is CVE-2016-5399?

CVE-2016-5399 is a high-severity memory corruption vulnerability in Php Php, published on 21 Apr 2017. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.

Official description

The bzread function in ext/bz2/bz2.c in PHP before 5.5.38, 5.6.x before 5.6.24, and 7.x before 7.0.9 allows remote attackers to cause a denial of service (out-of-bounds write) or execute arbitrary code via a crafted bz2 archive.

Weakness: CWE-787

Which versions are affected by CVE-2016-5399?

It affects 1 product.

Products include Php Php.

How do I fix CVE-2016-5399?

Upgrade to a fixed version.

Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.

Is CVE-2016-5399 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2016-5399 exists.

Public exploit code: 1 Exploit-DB entry.

All Php Php vulnerabilities

Sources

Also known as GHSA-3wxp-gf5c-jh8g, UBUNTU-CVE-2016-5399.

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