New Highly Critical Vulnerability Discovered in Opera for Windows
By on March 4th, 2010

Opera-10.5-Vulnerability New 0-day vulnerability has been discovered in Opera, which can be utilised to gain control of a user’s system. The vulnerability is known to affect Opera 10.10 and Opera 10.50 for Windows (other versions may be affected too) and a proof of concept submitted by Marcin Ressel is available here.

Secunia has categorised the vulnerability as highly critical. Apparently, the issue is caused due to a buffer overflow error, which can be triggered by a malformed HTTP “Content-Length:” header. Successful exploitation of the vulnerability may permit the execution of arbitrary code on the user’s system.

At the moment, no solution is available for the exploit. Until Opera Software patches this vulnerability, all Opera users should be cautious while browsing untrusted websites.

Update: This vulnerability may not be as dangerous as previously believed to be. Haavard K. Moen from Opera Software indicated that this vulnerability is not exploited. In other words all it can do is crash Opera. Execution of malicious code or gaining control of the user’s system is not possible.

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Author: Pallab De Google Profile for Pallab De
Pallab De is a blogger from India who has a soft spot for anything techie. He loves trying out new software and spends most of his day breaking and fixing his PC. Pallab loves participating in the social web; he has been active in technology forums since he was a teenager and is an active user of both twitter (@indyan) and facebook .

Pallab De has written and can be contacted at pallab@techie-buzz.com.
 
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