Rule:

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Sid:
16481

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Summary:
This event is generated when an attempt is made to exploit a known vulnerability in Opera.

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Impact:
Serious. Possible execution of arbitrary code of the attackers choosing.

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Detailed Information:
A buffer overflow condition exists in the Opera web browser that may allow a remote attacker to excute code on an affected system. The vulnerability is triggered by the presence of a long Content-Length header in a web page supplied by a server.

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Affected Systems:
Opera 10.5 and earlier

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Attack Scenarios:
An attacker can supply a long Content-Header to the client and trigger the overflow.

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Ease of Attack:
Simple. Exploits exist.

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False Positives:
None known.

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False Negatives:
None known.

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Corrective Action:
Ensure the system is using an up to date version of the software and has had all vendor supplied patches applied.

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Contributors:
Sourcefire Vulnerability Research Team


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Additional References:

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