Blue Coat ProxyAV libpng Buffer Overflow Vulnerability

Multiple vulnerabilities have identified in Blue Coat ProxyAV, which can be exploited by malicious people to compromise a vulnerable device.

1. An error within progressive applications when handling image row data can be exploited to potentially cause a buffer overflow by e.g. providing one additional image row beyond the height reported in the header.Successful exploitation may allow the execution of arbitrary code.
2. A memory leak exists within the handling of certain sCAL chunks. This can be exploited to e.g. cause a crash via specially crafted PNG images.