<em style='font-weight:bold;'>(Description Provided by <a href="http://cve.mitre.org/cgi-bin/cvename.cgi?name=2009-1919" target="_blank">CVE</a>)</em> : Microsoft Internet Explorer 5.01 SP4 and 6 SP1; Internet Explorer 6 for Windows XP SP2 and SP3 and Server 2003 SP2; and Internet Explorer 7 and 8 for Windows XP SP2 and SP3, Server 2003 SP2, Vista Gold, SP1, and SP2, and Server 2008 Gold and SP2 do not properly handle attempts to access deleted objects in memory, which allows remote attackers to execute arbitrary code via an HTML document containing embedded style sheets that modify unspecified rule properties that cause the behavior element to be &quot;improperly processed,&quot; aka &quot;Uninitialized Memory Corruption Vulnerability.&quot;

Currently, there are no known workarounds or upgrades to correct this issue. However, Microsoft has released a patch to address this vulnerability.

Unknown or Incomplete

• CVE ID: 2009-1919 (see also: NVD)
• Secunia Advisory ID: 35962
• Related OSVDB ID: 56693 56694
• Microsoft Knowledge Base Article: 972260
• Mail List Post: http://archives.neohapsis.com/archives/bugtraq/2009-08/0030.html
• News Article: http://news.cnet.com/8301-27080_3-10295592-245.html
  http://www.computerworld.com/s/article/9135950/Microsoft_rushes_to_fix_IE_kill_bit_bypass_attack?taxonomyId=17
• Other Advisory URL: http://www.zerodayinitiative.com/advisories/ZDI-09-048
• Microsoft Security Bulletin: MS09-034

• Peter Vreugdenhil - Zero Day Initiative (ZDI)