Out-of-bounds read in Realtek products - CVE-2020-25853
Published: February 3, 2021 / Updated: February 8, 2021
Vulnerability identifier: #VU50406
CSH Severity: Medium
CVSS v4: 8.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2020-25853
CWE-ID: CWE-125
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to a boundary condition in the "CheckMic()" function. A remote attacker can trigger out-of-bounds read error and cause a denial of service condition on the system.
Affected software
RTL8195AM
RTL8711AM
RTL8711AF
RTL8710AF
RTL8711AM
RTL8711AF
RTL8710AF
How to mitigate CVE-2020-25853
Install updates from vendor's website.
RTL8195AM - update to 2.0.8
RTL8711AM - update to 2.0.8
RTL8711AF - update to 2.0.8
RTL8710AF - update to 2.0.8
RTL8711AM - update to 2.0.8
RTL8711AF - update to 2.0.8
RTL8710AF - update to 2.0.8