Security Updates give the most recent protection content for Norton Internet Security, which protect networked critical systems and remote and mobile users from unwanted network intrusions and hackers, as well as from viruses, Trojans, and worms.

To download and install the Security Update 639 you need to run LiveUpdate feature of Norton Internet Security product. Please note that LiveUpdate definition identifier of Security Update 639 is 20120626.001 and its description was last modified on June 26, 2012 3:16:21 PM PDT.

Security Update 639 adds coverage for the following vulnerabilities and threats:

• Web Attack: Mozilla Dom CVE-2011-3659:
  This signature detects attempts to exploit a remote code execution vulnerability in Mozilla Firefox.
  
  

Security Update 639 provides updated coverage for the following vulnerabilities and threats:

• Web Attack: Adobe Flash CVE-2011-2140 2:
  This signature detects a buffer overflow vulnerability in Adobe Flash Player.
  
  
• Web Attack: Blackhole Toolkit Website 14:
  This signature detects attempts to download exploits from Blackhole toolkit that may compromise a computer through various vendor vulnerabilities.
  
  
• Web Attack: Malicious JAR File Download 6:
  This signature detects attempts to download malicious JAR files.
  
  
• Malicious Site: Suspicious Request:
  You have attempted to visit a known malicious IP address. Visiting this web site could potentially put you at risk to becoming infected. Symantec's Network Threat Protection solution has prevented any potential infection attempts from occurring. You should not have to take any additional actions and are safe from infection. It is recommended that you do NOT visit this site.
  
  
• Web Attack: Malicious Executable Download 4:
  Scripts may be downloaded by a browser but be specified as an image, thus evading some types of monitoring software.
  
  
• Web Attack: Malicious Java Download 6:
  This signature detects an attempt to detect vulnerability in Java which may result in remote code execution.
  
  
• Web Attack: MSIE MSXML CVE-2012-1889:
  This signature detects a maliciously crafted website attempting to exploit a remote code execution vulnerability in Microsoft XML Core Services.