CVE-2022-27255: Input Validation
In Realtek eCos RSDK 1.5.7p1 and MSDK 4.9.4p1, the SIP ALG function that rewrites SDP data has a stack-based buffer overflow. This allows an attacker to remotely execute code without authentication via a crafted SIP packet that contains malicious SDP data.
Affected Software
Event History
Frequently Asked Questions
What is the severity of CVE-2022-27255?
The severity of CVE-2022-27255 is critical with a CVSS score of 9.8.
What is the affected software for CVE-2022-27255?
The affected software for CVE-2022-27255 includes Realtek eCos RSDK Firmware 1.5.7p1 and Realtek eCos MSDK Firmware 4.9.4p1.
How does the vulnerability in CVE-2022-27255 allow remote code execution?
The vulnerability in CVE-2022-27255 allows remote code execution by exploiting a stack-based buffer overflow in the SIP ALG function that rewrites SDP data.
Is authentication required to exploit CVE-2022-27255?
No, authentication is not required to exploit CVE-2022-27255.
How can I fix CVE-2022-27255?
To fix CVE-2022-27255, it is recommended to apply the latest patches or updates provided by Realtek.