CVE-2020-11565

medium
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

** DISPUTED ** An issue was discovered in the Linux kernel through 5.6.2. mpol_parse_str in mm/mempolicy.c has a stack-based out-of-bounds write because an empty nodelist is mishandled during mount option parsing, aka CID-aa9f7d5172fa. NOTE: Someone in the security community disagrees that this is a vulnerability because the issue “is a bug in parsing mount options which can only be specified by a privileged user, so triggering the bug does not grant any powers not already held.”.

References

https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=aa9f7d5172fac9bf1f09e678c35e287a40a7b7dd

https://github.com/torvalds/linux/commit/aa9f7d5172fac9bf1f09e678c35e287a40a7b7dd

https://lists.debian.org/debian-lts-announce/2020/06/msg00011.html

https://lists.debian.org/debian-lts-announce/2020/06/msg00012.html

https://lists.debian.org/debian-lts-announce/2020/06/msg00013.html

https://usn.ubuntu.com/4363-1/

https://usn.ubuntu.com/4364-1/

https://usn.ubuntu.com/4367-1/

https://usn.ubuntu.com/4368-1/

https://usn.ubuntu.com/4369-1/

https://www.debian.org/security/2020/dsa-4667

https://www.debian.org/security/2020/dsa-4698

Details

Source: MITRE

Published: 2020-04-06

Updated: 2020-06-10

Type: CWE-787

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: 6

Vector: CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:H

Impact Score: 5.2

Exploitability Score: 0.8

Severity: MEDIUM

Vulnerable Software

Configuration 1

OR

cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions up to 5.6.2 (inclusive)

Configuration 2

OR

cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:esm:*:*:*

cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:*

cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:*

cpe:2.3:o:canonical:ubuntu_linux:20.04:*:*:*:lts:*:*:*

Tenable Plugins

View all (33 total)

IDNameProductFamilySeverity
149336NewStart CGSL CORE 5.04 / MAIN 5.04 : kernel Multiple Vulnerabilities (NS-SA-2021-0025)NessusNewStart CGSL Local Security Checks
medium
147318NewStart CGSL MAIN 6.02 : kernel Multiple Vulnerabilities (NS-SA-2021-0078)NessusNewStart CGSL Local Security Checks
high
145806CentOS 8 : kernel (CESA-2020:4431)NessusCentOS Local Security Checks
medium
143086RHEL 7 : kernel-alt (RHSA-2020:2854)NessusRed Hat Local Security Checks
medium
142430RHEL 8 : kernel (RHSA-2020:4431)NessusRed Hat Local Security Checks
medium
142382RHEL 8 : kernel-rt (RHSA-2020:4609)NessusRed Hat Local Security Checks
medium
141727Scientific Linux Security Update : kernel on SL7.x x86_64 (20201001)NessusScientific Linux Local Security Checks
high
141619CentOS 7 : kernel (CESA-2020:4060)NessusCentOS Local Security Checks
high
141057RHEL 7 : kernel (RHSA-2020:4060)NessusRed Hat Local Security Checks
high
141026RHEL 7 : kernel-rt (RHSA-2020:4062)NessusRed Hat Local Security Checks
high
140917EulerOS 2.0 SP3 : kernel (EulerOS-SA-2020-2150)NessusHuawei Local Security Checks
medium
137932EulerOS Virtualization 3.0.6.0 : kernel (EulerOS-SA-2020-1713)NessusHuawei Local Security Checks
medium
137805EulerOS Virtualization for ARM 64 3.0.6.0 : kernel (EulerOS-SA-2020-1698)NessusHuawei Local Security Checks
medium
137516EulerOS 2.0 SP2 : kernel (EulerOS-SA-2020-1674)NessusHuawei Local Security Checks
critical
137391Slackware 14.2 : Slackware 14.2 kernel (SSA:2020-163-01)NessusSlackware Local Security Checks
medium
137340Debian DSA-4698-1 : linux - security updateNessusDebian Local Security Checks
medium
137339Debian DLA-2242-1 : linux-4.9 security updateNessusDebian Local Security Checks
medium
137283Debian DLA-2241-2 : linux security updateNessusDebian Local Security Checks
medium
137024EulerOS 2.0 SP5 : kernel (EulerOS-SA-2020-1606)NessusHuawei Local Security Checks
medium
136966Ubuntu 18.04 LTS / 19.10 : Linux kernel regression (USN-4369-2)NessusUbuntu Local Security Checks
high
136965Ubuntu 20.04 : Linux kernel regression (USN-4367-2)NessusUbuntu Local Security Checks
high
136804Virtuozzo 6 : parallels-server-bm-release / vzkernel / etc (VZA-2020-037)NessusVirtuozzo Local Security Checks
high
136759Ubuntu 18.04 LTS / 19.10 : Linux kernel vulnerabilities (USN-4369-1)NessusUbuntu Local Security Checks
high
136733Ubuntu 18.04 LTS : Linux kernel vulnerabilities (USN-4368-1)NessusUbuntu Local Security Checks
medium
136732Ubuntu 20.04 : Linux kernel vulnerabilities (USN-4367-1)NessusUbuntu Local Security Checks
high
136711Ubuntu 16.04 LTS : Linux kernel vulnerabilities (USN-4364-1)NessusUbuntu Local Security Checks
high
136710Ubuntu 16.04 LTS / 18.04 LTS : Linux kernel vulnerabilities (USN-4363-1)NessusUbuntu Local Security Checks
high
136239EulerOS Virtualization for ARM 64 3.0.2.0 : kernel (EulerOS-SA-2020-1536)NessusHuawei Local Security Checks
critical
136124Debian DSA-4667-1 : linux - security updateNessusDebian Local Security Checks
high
136107Photon OS 1.0: Linux PHSA-2020-1.0-0290NessusPhotonOS Local Security Checks
high
135877Photon OS 2.0: Linux PHSA-2020-2.0-0230NessusPhotonOS Local Security Checks
high
135871Photon OS 3.0: Linux PHSA-2020-3.0-0082NessusPhotonOS Local Security Checks
high
135741EulerOS 2.0 SP8 : kernel (EulerOS-SA-2020-1508)NessusHuawei Local Security Checks
medium