eEye Security Advisory - eEye Digital Security has discovered a critical vulnerability in the Symantec firewall product line that would allow a remote, anonymous attacker to execute arbitrary code on a system running an affected version of the product. By sending a single specially-crafted NetBIOS Name Service (UDP port 137) packet to a vulnerable host, an attacker could cause an arbitrary memory location to be overwritten with data he or she controls, leading to the execution of attacker-supplied code with kernel privileges and the absolute compromise of the target. Systems Affected: Symantec Norton Internet Security 2002/2003/2004, Symantec Norton Internet Security Professional 2002/2003/2004, Symantec Norton Personal Firewall 2002/2003/2004, Symantec Client Firewall 5.01/5.1.1, Symantec Client Security 1.0/1.1/2.0(SCF 7.1), and Symantec Norton AntiSpam 2004.
8b0422b0cf3e0350cabdd99e47019446ad294a418bd75076bbf3b6a8ddc52f6feEye Security Advisory - eEye Digital Security has discovered a critical remote vulnerability within the Symantec firewall product line. There is a remote heap corruption vulnerability in SYMDNS.SYS, a driver that validates NetBIOS Name Service responses, which can lead to execution of arbitrary code for various Symantec products. Successful exploitation of this flaw yields remote kernel access to the system. Systems Affected: Symantec Norton Internet Security 2002/2003/2004, Symantec Norton Internet Security Professional 2002/2003/2004, Symantec Norton Personal Firewall 2002/2003/2004, Symantec Client Firewall 5.01/5.1.1, Symantec Client Security 1.0/1.1/2.0(SCF 7.1), and Symantec Norton AntiSpam 2004.
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