K81903701 : Libpng vulnerability CVE-2015-8472

Security Advisory Description

Buffer overflow in the png_set_PLTE function in libpng before 1.0.65, 1.1.x and 1.2.x before 1.2.55, 1.3.x, 1.4.x before 1.4.18, 1.5.x before 1.5.25, and 1.6.x before 1.6.20 allows remote attackers to cause a denial of service (application crash) or possibly have unspecified other impact via a small bit-depth value in an IHDR (aka image header) chunk in a PNG image. NOTE: this vulnerability exists because of an incomplete fix for CVE-2015-8126. (CVE-2015-8472)

Impact

This vulnerability may allow unauthorized disclosure of information, unauthorized modification, or disruption of service.

Important: A low severity rating applies when the attack is considered to be local only. A medium security rating applies when the BIG-IP APM module is enabled and configured with a Citrix VDI back end.