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Vulnerability DatabaseCVE-2021-42195
CVE-2021-42195:
NixOS vulnerability analysis and mitigation
Overview
A heap-buffer-overflow vulnerability was discovered in swftools through version 20201222. The vulnerability exists in the function handleEditText() located in swfdump.c. This issue was assigned CVE-2021-42195 and was publicly disclosed on June 2, 2022 (NVD).
Technical details
The vulnerability is classified as a heap-based buffer overflow vulnerability in the handleEditText() function of swfdump.c. The CVSS v3.1 base score is 7.8 (HIGH) with the vector string CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H. The issue occurs when reading beyond the bounds of an allocated memory region, specifically one byte past a 51-byte allocated region (GitHub Issue).
Impact
The vulnerability allows an attacker to cause code execution on the target system. The high CVSS score indicates potential severe impacts on confidentiality, integrity, and availability of the affected system (NVD).
Additional resources
Source: This report was generated using AI
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