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Vulnerability of Symantec Endpoint Protection, Norton Security: memory corruption in the parser for executable files

Synthesis of the vulnerability 

An attacker can generate a memory corruption in the executable file parser of Symantec Endpoint Protection and Norton Security, in order to trigger a denial of service, and possibly to run code with the kernel privileges.
Impacted software: Norton Security, SEP.
Severity of this computer vulnerability: 4/4.
Creation date: 08/07/2016.
Références of this announce: CVE-2016-5308, SYM16-013, TALOS-2016-0182, VIGILANCE-VUL-20050.

Description of the vulnerability 

The products Symantec Endpoint Protection and Norton Security analyse executable files.

To be able to intercept attempts to run a program file or load a shared library, the parser must be in the kernel. However, the kernel driver does not rightly manage some ill formed files. An attacker can inject code into the kernel memory space.

An attacker can therefore generate a memory corruption in the executable file parser of Symantec Endpoint Protection and Norton Security, in order to trigger a denial of service, and possibly to run code with the kernel privileges.
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This security threat impacts software or systems such as Norton Security, SEP.

Our Vigil@nce team determined that the severity of this computer weakness note is critical.

The trust level is of type confirmed by the editor, with an origin of document.

A proof of concept or an attack tool is available, so your teams have to process this alert. An attacker with a technician ability can exploit this computer threat alert.

Solutions for this threat 

Symantec Endpoint Protection, Norton Security: solution for the PE parser.
Fixed versions are distributed with virus signature databases.
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