Ubuntu.comUB:CVE-2010-0306CVE-2010-0306
4.1 Medium
CVSS2
Access Vector
LOCAL
Access Complexity
MEDIUM
Authentication
SINGLE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:L/AC:M/Au:S/C:P/I:P/A:P
0.001 Low
EPSS
Percentile
34.5%
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.
Notes
| Author | Note |
|---|---|
| kees | access to IO/MMIO requires elevated privileges, which already allows for guest OS disruption. No working upstream solution yet. |
| OS | Version | Architecture | Package | Version | Filename |
|---|---|---|---|---|---|
| ubuntu | 8.04 | noarch | linux | < 2.6.24-28.70 | UNKNOWN |
| ubuntu | 9.04 | noarch | linux | < 2.6.28-19.61 | UNKNOWN |
| ubuntu | 9.10 | noarch | linux | < 2.6.31-22.60 | UNKNOWN |
| ubuntu | 10.04 | noarch | linux | < 2.6.32-22.35 | UNKNOWN |
| ubuntu | 9.10 | noarch | linux-ec2 | < 2.6.31-307.15 | UNKNOWN |
| ubuntu | 10.04 | noarch | linux-ec2 | < 2.6.32-22.35 | UNKNOWN |
| ubuntu | 9.10 | noarch | linux-fsl-imx51 | < 2.6.31-112.28 | UNKNOWN |
| ubuntu | 10.04 | noarch | linux-fsl-imx51 | < 2.6.31-608.14 | UNKNOWN |
| ubuntu | 9.10 | noarch | linux-mvl-dove | < 2.6.31-214.28 | UNKNOWN |
| ubuntu | 10.04 | noarch | linux-mvl-dove | < 2.6.32-205.18 | UNKNOWN |
Related
4.1 Medium
CVSS2
Access Vector
LOCAL
Access Complexity
MEDIUM
Authentication
SINGLE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:L/AC:M/Au:S/C:P/I:P/A:P
0.001 Low
EPSS
Percentile
34.5%