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Vulnerability DatabaseCVE-2023-26769

CVE-2023-26769: 
NixOS vulnerability analysis and mitigation

Overview

CVE-2023-26769 is a Buffer Overflow vulnerability discovered in Liblouis Lou_Trace version 3.24.0. The vulnerability affects the resolveSubtable function in compileTranslationTable.c, allowing remote attackers to cause a denial of service (NVD, Ubuntu).

Technical details

The vulnerability has been assigned a CVSS v3.1 base score of 7.5 (High), with the following vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H. The vulnerability is classified as CWE-120 (Buffer Copy without Checking Size of Input). The issue occurs in the resolveSubtable function where buffer size checking is not properly implemented before copying operations (NVD).

Impact

When exploited, this vulnerability can lead to a denial of service condition, affecting the availability of the system. The CVSS scoring indicates that while there is no impact on confidentiality or integrity, the availability impact is rated as High (Ubuntu).

Mitigation and workarounds

The vulnerability has been fixed in version 3.25.0 of Liblouis. Multiple Linux distributions have released security updates to address this issue, including Ubuntu, Debian, and Red Hat. Users are advised to upgrade to the patched versions available through their respective package managers (Debian, GitHub PR).

Additional resources

Source: This report was generated using AI

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