Debian Security Bug TrackerDEBIANCVE:CVE-2014-7155CVE-2014-7155
5.8 Medium
CVSS2
Access Vector
ADJACENT_NETWORK
Access Complexity
LOW
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:A/AC:L/Au:N/C:P/I:P/A:P
0.001 Low
EPSS
Percentile
26.0%
The x86_emulate function in arch/x86/x86_emulate/x86_emulate.c in Xen 4.4.x and earlier does not properly check supervisor mode permissions, which allows local HVM users to cause a denial of service (guest crash) or gain guest kernel mode privileges via vectors involving an (1) HLT, (2) LGDT, (3) LIDT, or (4) LMSW instruction.
| OS | Version | Architecture | Package | Version | Filename |
|---|---|---|---|---|---|
| Debian | 12 | all | xen | < 4.4.1-3 | xen_4.4.1-3_all.deb |
| Debian | 11 | all | xen | < 4.4.1-3 | xen_4.4.1-3_all.deb |
| Debian | 10 | all | xen | < 4.4.1-3 | xen_4.4.1-3_all.deb |
| Debian | 999 | all | xen | < 4.4.1-3 | xen_4.4.1-3_all.deb |
| Debian | 13 | all | xen | < 4.4.1-3 | xen_4.4.1-3_all.deb |
Related
5.8 Medium
CVSS2
Access Vector
ADJACENT_NETWORK
Access Complexity
LOW
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:A/AC:L/Au:N/C:P/I:P/A:P
0.001 Low
EPSS
Percentile
26.0%