CVE-2022-20546: 
NixOS vulnerability analysis and mitigation

In getCurrentConfigImpl of Effect.cpp, there is a possible out of bounds write due to a missing bounds check. This could lead to local escalation of privilege with no additional execution privileges needed (Android Security Bulletin).

The vulnerability (CVE-2022-20546) is related to a bounds checking issue in the Effect.cpp file, specifically in the getCurrentConfigImpl function. The flaw allows for an out of bounds write operation due to insufficient bounds validation.

This vulnerability could potentially enable local attackers to achieve privilege escalation on affected systems. The severity of this issue is heightened by the fact that no additional execution privileges are required to exploit the vulnerability.

The vulnerability requires local access to the affected system to exploit. No additional execution privileges are needed to take advantage of this flaw, making it relatively straightforward to exploit for attackers who have local access.