UbuntuUSN-4303-2Linux kernel (HWE) vulnerability
CVSS2
Attack Vector
ADJACENT_NETWORK
Attack Complexity
MEDIUM
Authentication
SINGLE
Confidentiality Impact
PARTIAL
Integrity Impact
NONE
Availability Impact
NONE
AV:A/AC:M/Au:S/C:P/I:N/A:N
CVSS3
Attack Vector
ADJACENT
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
CHANGED
Confidentiality Impact
HIGH
Integrity Impact
NONE
Availability Impact
NONE
CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N
AI Score
Confidence
High
EPSS
Percentile
18.0%
Releases
- Ubuntu 14.04 ESM
Packages
- linux-aws - Linux kernel for Amazon Web Services (AWS) systems
- linux-lts-xenial - Linux hardware enablement kernel from Xenial for Trusty
Details
USN-4303-1 fixed vulnerabilities in the Linux kernel for Ubuntu 16.04
LTS. This update provides the corresponding updates for the Linux
Hardware Enablement (HWE) kernel from Ubuntu 16.04 LTS for Ubuntu
14.04 ESM.
Paulo Bonzini discovered that the KVM hypervisor implementation in the
Linux kernel could improperly let a nested (level 2) guest access the
resources of a parent (level 1) guest in certain situations. An attacker
could use this to expose sensitive information.
| OS | Version | Architecture | Package | Version | Filename |
|---|---|---|---|---|---|
| Ubuntu | 14.04 | noarch | linux-image-powerpc-smp-lts-xenial | <Â 4.4.0.176.155 | UNKNOWN |
| Ubuntu | 14.04 | noarch | linux-image-4.4.0-1064-aws | <Â 4.4.0-1064.68 | UNKNOWN |
| Ubuntu | 14.04 | noarch | linux-aws-cloud-tools-4.4.0-1044 | <Â 4.4.0-1044.47 | UNKNOWN |
| Ubuntu | 14.04 | noarch | linux-aws-headers-4.4.0-1044 | <Â 4.4.0-1044.47 | UNKNOWN |
| Ubuntu | 14.04 | noarch | linux-aws-tools-4.4.0-1044 | <Â 4.4.0-1044.47 | UNKNOWN |
| Ubuntu | 14.04 | noarch | linux-buildinfo-4.4.0-1044-aws | <Â 4.4.0-1044.47 | UNKNOWN |
| Ubuntu | 14.04 | noarch | linux-cloud-tools-4.4.0-1044-aws | <Â 4.4.0-1044.47 | UNKNOWN |
| Ubuntu | 14.04 | noarch | linux-headers-4.4.0-1044-aws | <Â 4.4.0-1044.47 | UNKNOWN |
| Ubuntu | 14.04 | noarch | linux-image-4.4.0-1044-aws | <Â 4.4.0-1044.47 | UNKNOWN |
| Ubuntu | 14.04 | noarch | linux-image-4.4.0-1044-aws-dbgsym | <Â 4.4.0-1044.47 | UNKNOWN |
References
Related
CVSS2
Attack Vector
ADJACENT_NETWORK
Attack Complexity
MEDIUM
Authentication
SINGLE
Confidentiality Impact
PARTIAL
Integrity Impact
NONE
Availability Impact
NONE
AV:A/AC:M/Au:S/C:P/I:N/A:N
CVSS3
Attack Vector
ADJACENT
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
CHANGED
Confidentiality Impact
HIGH
Integrity Impact
NONE
Availability Impact
NONE
CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N
AI Score
Confidence
High
EPSS
Percentile
18.0%