UbuntuUSN-4727-1Linux kernel vulnerability
7 High
CVSS3
Attack Vector
LOCAL
Attack Complexity
HIGH
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
7.3 High
AI Score
Confidence
High
6.9 Medium
CVSS2
Access Vector
LOCAL
Access Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
COMPLETE
Integrity Impact
COMPLETE
Availability Impact
COMPLETE
AV:L/AC:M/Au:N/C:C/I:C/A:C
0.0004 Low
EPSS
Percentile
5.3%
Releases
- Ubuntu 20.10
- Ubuntu 20.04 LTS
Packages
- linux - Linux kernel
- linux-aws - Linux kernel for Amazon Web Services (AWS) systems
- linux-azure - Linux kernel for Microsoft Azure Cloud systems
- linux-gcp - Linux kernel for Google Cloud Platform (GCP) systems
- linux-hwe-5.8 - Linux hardware enablement (HWE) kernel
- linux-kvm - Linux kernel for cloud environments
- linux-oem-5.6 - Linux kernel for OEM systems
- linux-oracle - Linux kernel for Oracle Cloud systems
- linux-raspi - Linux kernel for Raspberry Pi (V8) systems
Details
Alexander Popov discovered that multiple race conditions existed in the
AF_VSOCK implementation in the Linux kernel. A local attacker could use
this to cause a denial of service (system crash) or execute arbitrary code.
| OS | Version | Architecture | Package | Version | Filename |
|---|---|---|---|---|---|
| Ubuntu | 20.10 | noarch | linux-image-5.8.0-1015-raspi | < 5.8.0-1015.18 | UNKNOWN |
| Ubuntu | 20.10 | noarch | linux-buildinfo-5.8.0-1015-raspi | < 5.8.0-1015.18 | UNKNOWN |
| Ubuntu | 20.10 | noarch | linux-headers-5.8.0-1015-raspi | < 5.8.0-1015.18 | UNKNOWN |
| Ubuntu | 20.10 | noarch | linux-image-5.8.0-1015-raspi-dbgsym | < 5.8.0-1015.18 | UNKNOWN |
| Ubuntu | 20.10 | noarch | linux-modules-5.8.0-1015-raspi | < 5.8.0-1015.18 | UNKNOWN |
| Ubuntu | 20.10 | noarch | linux-raspi-headers-5.8.0-1015 | < 5.8.0-1015.18 | UNKNOWN |
| Ubuntu | 20.10 | noarch | linux-raspi-tools-5.8.0-1015 | < 5.8.0-1015.18 | UNKNOWN |
| Ubuntu | 20.10 | noarch | linux-tools-5.8.0-1015-raspi | < 5.8.0-1015.18 | UNKNOWN |
| Ubuntu | 20.10 | noarch | linux-image-5.8.0-1015-raspi-nolpae | < 5.8.0-1015.18 | UNKNOWN |
| Ubuntu | 20.10 | noarch | linux-image-5.8.0-1018-kvm | < 5.8.0-1018.20 | UNKNOWN |
References
Related
7 High
CVSS3
Attack Vector
LOCAL
Attack Complexity
HIGH
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
7.3 High
AI Score
Confidence
High
6.9 Medium
CVSS2
Access Vector
LOCAL
Access Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
COMPLETE
Integrity Impact
COMPLETE
Availability Impact
COMPLETE
AV:L/AC:M/Au:N/C:C/I:C/A:C
0.0004 Low
EPSS
Percentile
5.3%