CVE-2023-49554
NixOS vulnerability analysis and mitigation

Overview

A Use After Free (UAF) vulnerability has been discovered in YASM version 1.3.0.86.g9def, identified as CVE-2023-49554. The vulnerability was discovered in November 2023 and affects the do_directive function within the modules/preprocs/nasm/nasm-pp.c component (GitHub Issue, NVD).

Technical details

The vulnerability is classified as a Use After Free (UAF) issue with a CVSS v3.1 Base Score of 5.5 (Medium), with the vector string CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H. The issue occurs specifically in the do_directive function located in the modules/preprocs/nasm/nasm-pp.c component at line 2389 (NVD).

Impact

When exploited, this vulnerability allows a remote attacker to cause a denial of service condition in the affected system. The impact is primarily focused on system availability, with no direct impact on confidentiality or integrity (NVD).

Mitigation and workarounds

The vulnerability affects YASM version 1.3.0.86.g9def, and users are advised to update to a patched version when available. As of the current data, no official patch has been released (NVD).

Additional resources


SourceThis report was generated using AI

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