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Vulnerability DatabaseCVE-2022-27046
CVE-2022-27046:
NixOS vulnerability analysis and mitigation
Overview
libsixel version 1.8.6 was found to contain a Heap Use After Free vulnerability located in libsixel/src/dither.c at line 388. The vulnerability was discovered and reported on September 14, 2021 (GitHub Issue).
Technical details
The vulnerability has been assigned a CVSS v3.1 base score of 8.8 (HIGH) with the vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H. The issue is classified as CWE-416 (Use After Free). The vulnerability specifically occurs in the sixelditherunref function where there is an attempt to access memory after it has been freed (NVD).
Impact
The vulnerability allows for potential remote code execution with high impacts on confidentiality, integrity, and availability of the affected system. The CVSS scoring indicates that while user interaction is required, the vulnerability can be exploited remotely without requiring privileges (NVD).
Mitigation and workarounds
The vulnerability has been fixed in versions after 1.8.6. Users are advised to upgrade to a patched version of libsixel (Debian Tracker).
Additional resources
Source: This report was generated using AI
Related NixOS vulnerabilities:
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