Heap-based buffer overflow in Realtek products - CVE-2021-35393
Published: August 17, 2021
Vulnerability identifier: #VU55912
CSH Severity: High
CVSSv4.0: 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-2021-35393
CWE-ID: CWE-122
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerable software:
Realtek SDK
Realtek Jungle SDK
Realtek Luna SDK
Realtek SDK
Realtek Jungle SDK
Realtek Luna SDK
Software vendor:
Realtek
Realtek
Description
The vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists due to unsafe parsing of the UPnP SUBSCRIBE/UNSUBSCRIBE Callback header. A remote attacker can pass specially crafted data to the application, trigger heap-based buffer overflow and execute arbitrary code on the target system.
Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.
Remediation
Install updates from vendor's website.