CVE-2020-27786

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

A flaw was found in the Linux kernel’s implementation of MIDI, where an attacker with a local account and the permissions to issue ioctl commands to midi devices could trigger a use-after-free issue. A write to this specific memory while freed and before use causes the flow of execution to change and possibly allow for memory corruption or privilege escalation. The highest threat from this vulnerability is to confidentiality, integrity, as well as system availability.

References

https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=c1f6e3c818dd734c30f6a7eeebf232ba2cf3181d

https://bugzilla.redhat.com/show_bug.cgi?id=1900933

https://security.netapp.com/advisory/ntap-20210122-0002/

http://www.openwall.com/lists/oss-security/2020/12/03/1

Details

Source: MITRE

Published: 2020-12-11

Updated: 2021-05-12

Type: CWE-416

Risk Information

CVSS v2

Base Score: 7.2

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

Impact Score: 10

Exploitability Score: 3.9

Severity: HIGH

CVSS v3

Base Score: 7.8

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

Impact Score: 5.9

Exploitability Score: 1.8

Severity: HIGH

Tenable Plugins

View all (31 total)

IDNameProductFamilySeverity
151229EulerOS Virtualization 3.0.6.6 : kernel (EulerOS-SA-2021-2040)NessusHuawei Local Security Checks
high
150536SUSE SLES11 Security Update : kernel (SUSE-SU-2021:14630-1)NessusSuSE Local Security Checks
high
149914Oracle Linux 8 : kernel (ELSA-2021-1578)NessusOracle Linux Local Security Checks
high
149874CentOS 8 : kernel (CESA-2021:1578)NessusCentOS Local Security Checks
high
149670RHEL 8 : kernel (RHSA-2021:1578)NessusRed Hat Local Security Checks
high
149660RHEL 8 : kernel-rt (RHSA-2021:1739)NessusRed Hat Local Security Checks
high
148041EulerOS 2.0 SP5 : kernel (EulerOS-SA-2021-1684)NessusHuawei Local Security Checks
high
147875SUSE SLES12 Security Update : kernel (SUSE-SU-2021:0835-1)NessusSuSE Local Security Checks
high
147871SUSE SLES12 Security Update : kernel (SUSE-SU-2021:0870-1)NessusSuSE Local Security Checks
high
147690EulerOS Virtualization 2.9.0 : kernel (EulerOS-SA-2021-1642)NessusHuawei Local Security Checks
high
147588EulerOS Virtualization for ARM 64 3.0.2.0 : kernel (EulerOS-SA-2021-1386)NessusHuawei Local Security Checks
high
147512EulerOS Virtualization 2.9.1 : kernel (EulerOS-SA-2021-1604)NessusHuawei Local Security Checks
high
146701EulerOS 2.0 SP2 : kernel (EulerOS-SA-2021-1311)NessusHuawei Local Security Checks
high
146511SUSE SLES12 Security Update : kernel (SUSE-SU-2021:0452-1)NessusSuSE Local Security Checks
high
146476SUSE SLES12 Security Update : kernel (SUSE-SU-2021:0437-1)NessusSuSE Local Security Checks
high
146474SUSE SLES15 Security Update : kernel (SUSE-SU-2021:0438-1)NessusSuSE Local Security Checks
high
146470SUSE SLES12 Security Update : kernel (SUSE-SU-2021:0434-1)NessusSuSE Local Security Checks
high
146282openSUSE Security Update : RT kernel (openSUSE-2021-242)NessusSuSE Local Security Checks
high
146248OracleVM 3.4 : Unbreakable / etc (OVMSA-2021-0005)NessusOracleVM Local Security Checks
medium
146096Oracle Linux 6 / 7 : Unbreakable Enterprise kernel (ELSA-2021-9030)NessusOracle Linux Local Security Checks
medium
145726EulerOS 2.0 SP8 : kernel (EulerOS-SA-2021-1148)NessusHuawei Local Security Checks
medium
145320openSUSE Security Update : the Linux Kernel (openSUSE-2021-60)NessusSuSE Local Security Checks
medium
145287openSUSE Security Update : the Linux Kernel (openSUSE-2021-75)NessusSuSE Local Security Checks
medium
145120SUSE SLES12 Security Update : kernel (SUSE-SU-2021:0133-1)NessusSuSE Local Security Checks
medium
145025SUSE SLED15 / SLES15 Security Update : kernel (SUSE-SU-2021:0117-1)NessusSuSE Local Security Checks
medium
145018SUSE SLED15 / SLES15 Security Update : kernel (SUSE-SU-2021:0118-1)NessusSuSE Local Security Checks
medium
144914SUSE SLES12 Security Update : kernel (SUSE-SU-2021:0098-1)NessusSuSE Local Security Checks
high
144693EulerOS 2.0 SP9 : kernel (EulerOS-SA-2021-1028)NessusHuawei Local Security Checks
high
144687EulerOS 2.0 SP9 : kernel (EulerOS-SA-2021-1009)NessusHuawei Local Security Checks
high
144259SUSE SLES15 Security Update : kernel (SUSE-SU-2020:3798-1)NessusSuSE Local Security Checks
high
144143SUSE SLES15 Security Update : kernel (SUSE-SU-2020:3764-1)NessusSuSE Local Security Checks
high