Stack-based buffer overflow in the URL Search Hook (ICQToolBar.dll) in ICQ 6.5 allows remote attackers to cause a denial of service (persistent crash) and possibly execute arbitrary code via an Internet shortcut .URL file containing a long URL parameter, which triggers a crash when browsing a folder that contains this file.
Improper Restriction of Operations within the Bounds of a Memory Buffer The product performs operations on a memory buffer, but it reads from or writes to a memory location outside the buffer's intended boundary.