Cloud Vulnerability DB
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Vulnerability DatabaseCVE-2021-42201
CVE-2021-42201:
NixOS vulnerability analysis and mitigation
Overview
A heap-buffer-overflow vulnerability was discovered in swftools through version 20201222. The vulnerability exists in the function swf_GetD64() located in rfxswf.c, which allows attackers to cause code execution (GitHub Issue, NVD).
Technical details
The vulnerability is identified as a heap-buffer-overflow that occurs in the swf_GetD64 function within the rfxswf.c file. According to the AddressSanitizer output, the issue involves a READ operation of size 8 at a memory address that is located 0 bytes to the right of a 109-byte allocated region. The vulnerability has been assigned a CVSS v3.1 base score of 7.8 HIGH with vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H (NVD).
Impact
The vulnerability can lead to code execution in the context of the affected application. This could potentially allow attackers to execute arbitrary commands on the affected system, compromising the confidentiality, integrity, and availability of the system (NVD).
Additional resources
Source: This report was generated using AI
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