Secunia Security Advisory - halfdog has reported a vulnerability in Oracle VirtualBox, which can be exploited by malicious, local users in a guest virtual machine to cause a DoS (Denial of Service).
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TITLE:
Oracle VirtualBox Missing VT-x / AMD-V Extension Interrupt Handling
Vulnerability
SECUNIA ADVISORY ID:
SA50519
VERIFY ADVISORY:
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http://secunia.com/advisories/50519/
Customer Area (Credentials Required)
https://ca.secunia.com/?page=viewadvisory&vuln_id=50519
RELEASE DATE:
2012-09-10
DISCUSS ADVISORY:
http://secunia.com/advisories/50519/#comments
AVAILABLE ON SITE AND IN CUSTOMER AREA:
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http://secunia.com/advisories/50519/
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https://ca.secunia.com/?page=viewadvisory&vuln_id=50519
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DESCRIPTION:
halfdog has reported a vulnerability in Oracle VirtualBox, which can
be exploited by malicious, local users in a guest virtual machine to
cause a DoS (Denial of Service).
The vulnerability is caused due to a NULL-pointer dereference error
when calling the task-gate via IDT (software interrupt) with
insufficient privileges in a processor missing VT-x / AMD-V
extensions and can be exploited to cause a crash.
The vulnerability is reported in versions prior to 4.1.22.
SOLUTION:
Update to version 4.1.22.
PROVIDED AND/OR DISCOVERED BY:
halfdog
ORIGINAL ADVISORY:
http://www.halfdog.net/Security/2012/VirtualBoxSoftwareInterrupt0x8GuestCrash/
https://www.virtualbox.org/wiki/Changelog
OTHER REFERENCES:
Further details available in Customer Area:
http://secunia.com/vulnerability_intelligence/
DEEP LINKS:
Further details available in Customer Area:
http://secunia.com/vulnerability_intelligence/
EXTENDED DESCRIPTION:
Further details available in Customer Area:
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EXTENDED SOLUTION:
Further details available in Customer Area:
http://secunia.com/vulnerability_intelligence/
EXPLOIT:
Further details available in Customer Area:
http://secunia.com/vulnerability_intelligence/
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