CVE-2017-18270

HIGH
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

In the Linux kernel before 4.13.5, a local user could create keyrings for other users via keyctl commands, setting unwanted defaults or causing a denial of service.

References

http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=237bbd29f7a049d310d907f4b2716a7feef9abf3

http://www.securityfocus.com/bid/104254

https://bugzilla.redhat.com/show_bug.cgi?id=1580979

https://bugzilla.redhat.com/show_bug.cgi?id=1856774#c11

https://bugzilla.redhat.com/show_bug.cgi?id=1856774#c9

https://github.com/torvalds/linux/commit/237bbd29f7a049d310d907f4b2716a7feef9abf3

https://support.f5.com/csp/article/K37301725

https://usn.ubuntu.com/3754-1/

https://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.13.5

Details

Source: MITRE

Published: 2018-05-18

Updated: 2020-08-14

Risk Information

CVSS v2

Base Score: 3.6

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

Impact Score: 4.9

Exploitability Score: 3.9

Severity: LOW

CVSS v3

Base Score: 7.1

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

Impact Score: 5.2

Exploitability Score: 1.8

Severity: HIGH

Vulnerable Software

Configuration 1

OR

cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*

Tenable Plugins

View all (11 total)

IDNameProductFamilySeverity
147273NewStart CGSL CORE 5.04 / MAIN 5.04 : kernel Multiple Vulnerabilities (NS-SA-2021-0008)NessusNewStart CGSL Local Security Checks
medium
124975EulerOS Virtualization for ARM 64 3.0.1.0 : kernel (EulerOS-SA-2019-1522)NessusHuawei Local Security Checks
high
124825EulerOS Virtualization 3.0.1.0 : kernel (EulerOS-SA-2019-1502)NessusHuawei Local Security Checks
high
122414EulerOS 2.0 SP2 : kernel (EulerOS-SA-2019-1062)NessusHuawei Local Security Checks
high
117741EulerOS 2.0 SP3 : kernel (EulerOS-SA-2018-1297)NessusHuawei Local Security Checks
medium
117586EulerOS Virtualization 2.5.1 : kernel (EulerOS-SA-2018-1280)NessusHuawei Local Security Checks
medium
112113Ubuntu 14.04 LTS : Linux kernel vulnerabilities (USN-3754-1)NessusUbuntu Local Security Checks
critical
109380CentOS 7 : kernel (CESA-2018:1062)NessusCentOS Local Security Checks
critical
109113Oracle Linux 7 : kernel (ELSA-2018-1062)NessusOracle Linux Local Security Checks
critical
108997RHEL 7 : kernel (RHSA-2018:1062)NessusRed Hat Local Security Checks
critical
107189RHEL 7 : kernel-rt (RHSA-2018:0412)NessusRed Hat Local Security Checks
high