Microsoft · Mono · CVE-2011-0989
**Name of the Vulnerable Software and Affected Versions**
Mono versions prior to 2.4.1
Mono versions prior to 3.99.3
**Description**
The issue allows remote attackers to modify internal read-only data structures, causing a denial of service or corrupting the internal state of the security manager, via a crafted media file. This can be achieved by modifying a C# struct.
**Recommendations**
For Mono versions prior to 2.4.1, update to version 2.4.1 or later.
For Mono versions prior to 3.99.3, update to version 3.99.3 or later.