OpenSSL DTLS Fragment Out-Of-Bounds Write Remote Code Execution Vulnerability

2014-06-05T00:00:00
ID ZDI-14-173
Type zdi
Reporter Jüri Aedla
Modified 2014-11-09T00:00:00

Description

This vulnerability allows remote attackers to execute arbitrary code on vulnerable installations of OpenSSL. Authentication is not required to exploit this vulnerability.

The specific flaw exists within the handling of DTLS packets. The issue lies in the assumption that all fragments specify the same message size. An attacker could leverage this vulnerability to execute code in the context of the process using OpenSSL.