CVE-2025-3408: 
Linux Debian vulnerability analysis and mitigation

A critical vulnerability was discovered in Nothings stb library (up to version f056911) affecting the stb_dupreplace function. The vulnerability (CVE-2025-3408) was disclosed on April 8, 2025, and involves an integer overflow condition that can be triggered remotely (NVD).

The vulnerability is rated as critical with a CVSS v4.0 Base Score of 5.3 (MEDIUM) with vector string CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N. Under CVSS v3.1, it has a Base Score of 6.3 (MEDIUM) with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L. The vulnerability is classified under CWE-189 (Numeric Errors) and CWE-190 (Integer Overflow or Wraparound) (NVD).

The vulnerability allows remote attackers to exploit integer overflow conditions in the stb_dupreplace function, which could potentially lead to arbitrary code execution or system compromise (NVD).

The vulnerability can be exploited remotely, and no special privileges are required for exploitation. The attack complexity is rated as low, indicating relatively straightforward exploitation (NVD).

No official fixes have been released as the product uses continuous delivery with rolling releases. The vendor was contacted about this disclosure but did not respond (NVD).