CVE-2010-0306
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…
Does this matter?
Lower severity and a low EPSS score (0.38%). Track it; it rarely justifies an emergency change on its own.
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.
- CVSS 2.0
- 4.1 MEDIUMAV:L/AC:M/Au:S/C:P/I:P/A:P
- EPSS
- 0.38% probability · 32th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-264
- Affected
- kvm qumranet/kvm
- Source
- secalert@redhat.com
References
- http://secunia.com/advisories/38492Vendor Advisory
- http://secunia.com/advisories/38499Vendor Advisory
- http://www.debian.org/security/2010/dsa-1996
- http://www.securityfocus.com/bid/38158
- https://bugzilla.redhat.com/show_bug.cgi?id=560654
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A10953
- https://rhn.redhat.com/errata/RHSA-2010-0088.html
- https://rhn.redhat.com/errata/RHSA-2010-0095.html
- http://secunia.com/advisories/38492Vendor Advisory
- http://secunia.com/advisories/38499Vendor Advisory
- http://www.debian.org/security/2010/dsa-1996
- http://www.securityfocus.com/bid/38158
- https://bugzilla.redhat.com/show_bug.cgi?id=560654
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A10953
- https://rhn.redhat.com/errata/RHSA-2010-0088.html
- https://rhn.redhat.com/errata/RHSA-2010-0095.html
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.