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ubuntuUbuntuUSN-2805-1
HistoryNov 10, 2015 - 12:00 a.m.

Linux kernel (Utopic HWE) vulnerability

2015-11-1000:00:00
ubuntu.com
45

6.6 Medium

AI Score

Confidence

High

4.9 Medium

CVSS2

Access Vector

LOCAL

Access Complexity

LOW

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

COMPLETE

AV:L/AC:L/Au:N/C:N/I:N/A:C

0.001 Low

EPSS

Percentile

30.3%

Releases

  • Ubuntu 14.04 ESM

Packages

  • linux-lts-utopic - Linux hardware enablement kernel from Utopic

Details

Ben Serebrin discovered that the KVM hypervisor implementation in the Linux
kernel did not properly catch Alignment Check exceptions. An attacker in a
guest virtual machine could use this to cause a denial of service (system
crash) in the host OS.

6.6 Medium

AI Score

Confidence

High

4.9 Medium

CVSS2

Access Vector

LOCAL

Access Complexity

LOW

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

COMPLETE

AV:L/AC:L/Au:N/C:N/I:N/A:C

0.001 Low

EPSS

Percentile

30.3%