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Vulnerability DatabaseCVE-2021-42198
CVE-2021-42198:
NixOS vulnerability analysis and mitigation
Overview
A NULL pointer dereference vulnerability was discovered in swftools through 20201222 (CVE-2021-42198). The vulnerability exists in the function swf_GetBits() located in rfxswf.c, which allows an attacker to cause a Denial of Service (GitHub Issue).
Technical details
The vulnerability is a NULL pointer dereference in the swf_GetBits() function within rfxswf.c. According to the AddressSanitizer output, the issue occurs at line 213 of rfxswf.c when attempting to access memory at address 0x000000000000. The vulnerability has been assigned a CVSS v3.1 base score of 5.5 (MEDIUM) with vector string CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H (NVD).
Impact
When exploited, this vulnerability allows an attacker to cause a Denial of Service (DoS) condition in the application. The CVSS scoring indicates that while there is no impact on confidentiality or integrity, there is a high impact on availability (NVD).
Additional resources
Source: This report was generated using AI
Related NixOS vulnerabilities:
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