Race condition in Linux kernel - CVE-2021-3609

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Main Vulnerability Database Vulnerabilities #VU54292

Race condition in Linux kernel - CVE-2021-3609

Published: June 21, 2021


Vulnerability identifier: #VU54292
CSH Severity: Medium
CVSS v4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P/U:Green
CVE-ID: CVE-2021-3609
CWE-ID: CWE-362
Exploitation vector: Local access
Exploit availability: No public exploit available
Vendor: Linux Foundation
Affected software:
Linux kernel

Detailed vulnerability description

The vulnerability allows a local user to escalate privileges on the system.

The vulnerability exists due to a race condition in the CAN BCM networking protocol (net/can/bcm.c) in the Linux kernel ranging from version 2.6.25 to mainline 5.13-rc6. A local user can exploit the race and gain unauthorized access to sensitive information and escalate privileges on the system.


How to mitigate CVE-2021-3609

Cybersecurity Help is currently unaware of any official solution to address this vulnerability.

Sources