Stack-based buffer overflow in Realtek products - CVE-2021-35392
Published: August 17, 2021
Vulnerability identifier: #VU55911
CSH Severity: High
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber
CVE-ID: CVE-2021-35392
CWE-ID: CWE-121
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: Realtek
Affected software:
Realtek SDK
Realtek Jungle SDK
Realtek Luna SDK
Realtek SDK
Realtek Jungle SDK
Realtek Luna SDK
Detailed vulnerability description
The vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists due to unsafe crafting of SSDP NOTIFY messages from received M-SEARCH messages ST header. A remote unauthenticated attacker can trigger stack-based buffer overflow and execute arbitrary code on the target system.
Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.
How to mitigate CVE-2021-35392
Install updates from vendor's website.