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HistoryNov 01, 2021 - 12:00 a.m.

K01249564 : Linux kernel vulnerability CVE-2020-27786

2021-11-0100:00:00
my.f5.com
35
linux kernel
midi
local account
privilege escalation
use-after-free
memory corruption
vulnerability

AI Score

7.8

Confidence

High

EPSS

0

Percentile

9.8%

Security Advisory 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. (CVE-2020-27786)

Impact

There is no impact; F5 products are not affected by this vulnerability.