CVE-2025-9300
NixOS vulnerability analysis and mitigation

Overview

A stack-based buffer overflow vulnerability has been identified in saitoha libsixel versions up to 1.10.3. The vulnerability specifically affects the sixel_debug_print_palette function within the src/encoder.c file of the img2sixel component. This vulnerability was disclosed on August 21, 2025, and has been assigned CVE-2025-9300 (NVD).

Technical details

The vulnerability is classified as a stack-based buffer overflow (CWE-121) and improper restriction of operations within memory bounds (CWE-119). It has received a CVSS v4.0 base score of 4.8 (Medium) with the vector string CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N, and a CVSS v3.1 base score of 5.3 (Medium) with the vector string CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L (VulDB).

Impact

The vulnerability can result in stack-based buffer overflow conditions, potentially leading to system crashes, code execution, or memory corruption. The impact is rated as Low for confidentiality, integrity, and availability, indicating potential but limited damage to system resources (NVD).

Mitigation and workarounds

A patch has been identified with the commit ID 316c086e79d66b62c0c4bc66229ee894e4fdb7d1. Users are advised to update to a version newer than 1.10.3 to resolve this vulnerability (Github Commit).

Additional resources


SourceThis report was generated using AI

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