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The final version of the CSI 6.0 has been released. 
Find out why this is not just another Patch Management solution: http://secunia.com/blog/325/

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TITLE:
Xen "pciback_enable_msi()" Log Message Flooding Denial of Service
Vulnerability

SECUNIA ADVISORY ID:
SA52059

VERIFY ADVISORY:
Secunia.com
http://secunia.com/advisories/52059/
Customer Area (Credentials Required)
https://ca.secunia.com/?page=viewadvisory&vuln_id=52059

RELEASE DATE:
2013-02-06

DISCUSS ADVISORY:
http://secunia.com/advisories/52059/#comments

AVAILABLE ON SITE AND IN CUSTOMER AREA:
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 * Impact
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 * CVE Reference(s)

http://secunia.com/advisories/52059/

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https://ca.secunia.com/?page=viewadvisory&vuln_id=52059

ONLY AVAILABLE WITH SECUNIA CSI AND SECUNIA PSI:
 * AUTOMATED SCANNING

http://secunia.com/vulnerability_scanning/personal/
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DESCRIPTION:
A vulnerability has been reported in Xen, 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 an error within the
"pciback_enable_msi()" function
(drivers/xen/pciback/conf_space_capability_msi.c), which does not
limit the rate of kernel log messages. This can be exploited to flood
the kernel with log messages and render the system unusable.

Successful exploitation requires running a guest with access to
passed through PCI devices.

The vulnerability is reported in versions 3.x including Linux 2.6.18.

SOLUTION:
Fixed in the Mercurial repository.

PROVIDED AND/OR DISCOVERED BY:
Reported by the vendor.

ORIGINAL ADVISORY:
XSA-43:
http://www.openwall.com/lists/oss-security/2013/02/05/9

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:
http://secunia.com/vulnerability_intelligence/

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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About:
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