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Vulnerability DatabaseCVE-2021-39559
CVE-2021-39559:
NixOS vulnerability analysis and mitigation
Overview
An issue was discovered in swftools through 20200710. A NULL pointer dereference exists in the function GString::~GString() located in GString.cc. It allows an attacker to cause Denial of Service (NVD, GitHub Issue).
Technical details
The vulnerability is a NULL pointer dereference that occurs in the GString destructor function located in GString.cc. When triggered, it leads to a SIGSEGV (Segmentation Fault) crash. The issue has been assigned a CVSS v3.1 Base Score of 5.5 MEDIUM with vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H (NVD).
Impact
The vulnerability allows an attacker to cause a Denial of Service condition by triggering a crash in the application through a NULL pointer dereference. This affects the availability of the system but does not impact confidentiality or integrity (NVD).
Additional resources
Source: This report was generated using AI
Related NixOS vulnerabilities:
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