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Advisories

RGui 3.5.0 Local Buffer Overflow SEH DEP Bypass

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severity
high
date
Affecting

  • RGui <= 3.5.0

CWE
  • CWE-434 Unrestricted Upload of File with Dangerous Type
CVSS
8.6
CVSS V4 Vector
CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
Credit
bzyo
Description
RGui 3.5.0 contains a local buffer overflow vulnerability in the GUI preferences dialog that allows attackers to bypass DEP protections through structured exception handling exploitation. Attackers can craft malicious input in the Language for menus and messages field to trigger a stack-based buffer overflow, execute a ROP chain for VirtualAlloc allocation, and achieve arbitrary code execution.

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