CVE-2023-32856: 
NixOS vulnerability analysis and mitigation

CVE-2023-32856 is a medium severity vulnerability discovered in MediaTek's display component. The vulnerability was disclosed in December 2023 and affects various MediaTek chipsets running Android 12.0 and 13.0 operating systems. The issue stems from a buffer copy operation without proper size checking, which could potentially lead to information disclosure (Vendor Advisory).

The vulnerability is classified as a Buffer Copy without Checking Size of Input ('Classic Buffer Overflow') vulnerability with CWE-120 designation. It manifests as an out-of-bounds read condition due to an incorrect status check in the display component. The vulnerability has been assigned a CVSS v3.1 base score of 4.4 (Medium) with the vector string CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N (NVD).

The exploitation of this vulnerability could result in local information disclosure, requiring System execution privileges. The vulnerability affects multiple MediaTek chipsets including MT6765, MT6768, MT6833, MT6879, MT6883, MT6885, MT6889, MT6893, MT6983, MT6985, MT8188, MT8195, MT8797, and MT8798 (Vendor Advisory).

MediaTek has addressed this vulnerability in their December 2023 security bulletin. Device OEMs have been notified of the issue and corresponding security patches have been made available. Users are advised to apply the latest security updates provided by their device manufacturers (Vendor Advisory).