Rapid7 Vulnerability & Exploit Database

Debian: CVE-2021-3739: linux -- security update

Free InsightVM Trial No Credit Card Necessary
Watch Demo See how it all works
Back to Search

Debian: CVE-2021-3739: linux -- security update

Severity
4
CVSS
(AV:L/AC:L/Au:N/C:P/I:N/A:P)
Published
03/10/2022
Created
11/04/2022
Added
11/04/2022
Modified
11/04/2022

Description

A NULL pointer dereference flaw was found in the btrfs_rm_device function in fs/btrfs/volumes.c in the Linux Kernel, where triggering the bug requires ‘CAP_SYS_ADMIN’. This flaw allows a local attacker to crash the system or leak kernel internal information. The highest threat from this vulnerability is to system availability.

Solution(s)

  • debian-upgrade-linux

With Rapid7 live dashboards, I have a clear view of all the assets on my network, which ones can be exploited, and what I need to do in order to reduce the risk in my environment in real-time. No other tool gives us that kind of value and insight.

– Scott Cheney, Manager of Information Security, Sierra View Medical Center

;