#VU90356 Out-of-bounds read in Linux kernel - CVE-2021-46980 

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Main Vulnerability Database Vulnerabilities #VU90356

#VU90356 Out-of-bounds read in Linux kernel - CVE-2021-46980

Published: May 31, 2024 / Updated: May 14, 2025


Vulnerability identifier: #VU90356
Vulnerability risk: Low
CVSSv4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2021-46980
CWE-ID: CWE-125
Exploitation vector: Local access
Exploit availability: No public exploit available
Vulnerable software:
Linux kernel
Software vendor:
Linux Foundation

Description

The vulnerability allows a local user to perform a denial of service (DoS) attack.

The vulnerability exists due to an out-of-bounds read error within the ucsi_unregister_altmodes(), ucsi_get_pdos() and ucsi_pwr_opmode_change() functions in drivers/usb/typec/ucsi/ucsi.c. A local user can perform a denial of service (DoS) attack.


Remediation

Install update from vendor's website.

External links