CVE-2010-0306

Description

The x86 emulator in KVM 83, when a guest is configured for Symmetric Multiprocessing (SMP), does not use the Current Privilege Level (CPL) and I/O Privilege Level (IOPL) to restrict instruction execution, which allows guest OS users to cause a denial of service (guest OS crash) or gain privileges on the guest OS by leveraging access to a (1) IO port or (2) MMIO region, and replacing an instruction in between emulator entry and instruction fetch, a related issue to CVE-2010-0298.

Category

4.1
CVSS
Severity: Medium
CVSS 2.0 •
EPSS 0.10%
Vendor Advisory redhat.com Vendor Advisory debian.org Vendor Advisory redhat.com Vendor Advisory secunia.com Vendor Advisory secunia.com
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
https://bugzilla.redhat.com/show_bug.cgi?id=560654
http://www.securityfocus.com/bid/38158 vdb entry
https://rhn.redhat.com/errata/RHSA-2010-0088.html vendor advisory
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A10953 vdb entry signature
http://www.debian.org/security/2010/dsa-1996 vendor advisory
https://rhn.redhat.com/errata/RHSA-2010-0095.html vendor advisory
http://secunia.com/advisories/38499 third party advisory vendor advisory
http://secunia.com/advisories/38492 third party advisory vendor advisory

Frequently Asked Questions

What is the severity of CVE-2010-0306?
CVE-2010-0306 has been scored as a medium severity vulnerability.
How to fix CVE-2010-0306?
To fix CVE-2010-0306, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2010-0306 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2010-0306 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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