SB20240531264 - Out-of-bounds read in Linux kernel mt76 mt7921 driver
Published: May 31, 2024 Updated: May 14, 2025
Security Bulletin ID
SB20240531264
CSH Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Local access
Highest impact
Denial of service
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 vulnerability.
1) Out-of-bounds read (CVE-ID: CVE-2021-47135)
CWE-ID: CWE-125 - Out-of-bounds read
CVSSv4: 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
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 mt7921_mcu_tx_rate_report() function in drivers/net/wireless/mediatek/mt76/mt7921/mcu.c. A local user can perform a denial of service (DoS) attack.
Remediation
Install update from vendor's website.