CVE-2018-6559

low
New! CVE Severity Now Using CVSS v3

The calculated severity for CVEs has been updated to use CVSS v3 by default. CVEs that do not have a CVSS v3 score will fall back CVSS v2 for calculating severity. Severity display preferences can be toggled in the settings dropdown.

Description

The Linux kernel, as used in Ubuntu 18.04 LTS and Ubuntu 18.10, allows local users to obtain names of files in which they would not normally be able to access via an overlayfs mount inside of a user namespace.

References

http://www.securityfocus.com/bid/105752

https://launchpad.net/bugs/1793458

https://lists.ubuntu.com/archives/kernel-team/2018-October/096172.html

https://people.canonical.com/~ubuntu-security/cve/2018/CVE-2018-6559.html

https://usn.ubuntu.com/3832-1/

https://usn.ubuntu.com/3833-1/

https://usn.ubuntu.com/3835-1/

https://usn.ubuntu.com/3836-1/

https://usn.ubuntu.com/3836-2/

Details

Source: MITRE

Published: 2018-10-26

Updated: 2019-10-09

Type: CWE-200

Risk Information

CVSS v2

Base Score: 2.1

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

Impact Score: 2.9

Exploitability Score: 3.9

Severity: LOW

CVSS v3

Base Score: 3.3

Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N

Impact Score: 1.4

Exploitability Score: 1.8

Severity: LOW

Tenable Plugins

View all (5 total)

IDNameProductFamilySeverity
119340Ubuntu 16.04 LTS : linux-hwe, linux-gcp vulnerabilities (USN-3836-2)NessusUbuntu Local Security Checks
high
119339Ubuntu 18.04 LTS : linux, linux-gcp, linux-kvm, linux-raspi2 vulnerabilities (USN-3836-1)NessusUbuntu Local Security Checks
high
119338Ubuntu 18.10 : linux, linux-gcp, linux-kvm, linux-raspi2 vulnerabilities (USN-3835-1)NessusUbuntu Local Security Checks
high
119303Ubuntu 18.04 LTS : Linux kernel (AWS) vulnerabilities (USN-3833-1)NessusUbuntu Local Security Checks
high
119302Ubuntu 18.10 : Linux kernel (AWS) vulnerabilities (USN-3832-1)NessusUbuntu Local Security Checks
high