Firefox Flaw Put Users At Risk

Filed under: — By Aviran Mordo @ 10:33 am

Tom Ferris has discovered a vulnerability in Firefox, which can be exploited by malicious people to cause a DoS (Denial of Service) or potentially to compromise a user’s system.

The vulnerability is caused due to an error in the handling of an URL that contains dashes in its domain name. This can be exploited to cause a heap-based buffer overflow.

Successful exploitation crashes Firefox and may potentially allow code execution but requires that the user is tricked into visiting a malicious web site or open a specially crafted HTML file.

The vulnerability has been confirmed in version 1.0.6, and is reported to affect versions prior to 1.0.6, and version 1.5 Beta 1.

The security company Secunia rates this vulnerability as Highly critical, and recommends that until this flaw is fixed you should avoid browsing untrusted web sites


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