Stack-based Buffer Overflow in Realtek eCos RSDK and MSDK SIP ALG Function

Stack-based Buffer Overflow in Realtek eCos RSDK and MSDK SIP ALG Function

CVE-2022-27255 · CRITICAL Severity

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

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.

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