|Ασφάλεια|Critical: Highly critical

Impact: DoS, System access

Where: From remote

Solution Status: Unpatched



Software: Mozilla Firefox 1.x, Netscape 7.x, Netscape 8.x




Description:

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 the 0xAD character 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, and additionally in Netscape versions 8.0.3.3 and 7.2. Other versions may also be affected.



Solution:

Don't browse untrusted web sites.



Original Advisory:

http://security-protocols.com/advisory/sp-x17-advisory.txt