CVE-2024-6287: 
Linux Debian vulnerability analysis and mitigation

Incorrect Calculation vulnerability (CVE-2024-6287) affects Renesas arm-trusted-firmware, specifically in the RCAR Gen3 v2.5 platform. The vulnerability was discovered and disclosed in June 2024, allowing local execution of code through improper address range calculations when checking for image overlaps during the boot process (ASRG Advisory).

The vulnerability stems from incorrect calculation logic in the arm-trusted-firmware when checking whether a new image invades or overlaps with a previously loaded image. The code fails to consider certain edge cases in address range validation, which could lead to memory range restriction bypass. The vulnerability has been assigned a CVSS v3.1 base score of 7.8 (HIGH) by NIST and 7.5 (HIGH) by ASRG, with the vector string CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H (NVD Database).

If exploited, this vulnerability could allow an attacker to bypass memory range restrictions and overwrite an already loaded image either partially or completely. This could result in arbitrary code execution and potentially bypass secure boot mechanisms, compromising the system's security (ASRG Advisory).

A patch has been released to address the vulnerability through a commit in the Renesas RCAR repository. The fix implements proper checking against all address overlap cases to prevent unauthorized image overwrites (Renesas Patch).