Cloud Vulnerability DB
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Vulnerability DatabaseCVE-2023-26553
CVE-2023-26553:
NixOS vulnerability analysis and mitigation
Overview
A buffer overflow vulnerability was identified in NTP version 4.2.8p15, specifically in the mstolfp function within libntp/mstolfp.c. The vulnerability involves an out-of-bounds write operation when copying trailing numbers (NVD, CVE Mitre).
Technical details
The vulnerability is classified as an out-of-bounds write (CWE-787) occurring in the mstolfp.c file at line 88. The CVSS v3.1 base score is 5.6 (Medium), with the vector string CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L, indicating network accessibility with high attack complexity and no privileges required (NVD).
Impact
The vulnerability affects the libntp component, which serves as an upstream library that can impact various other components. While the vulnerability exists in the codebase, its impact is limited to the ntpq client process and does not affect the main ntpd daemon (GitHub Advisory).
Mitigation and workarounds
As the vulnerability only affects the ntpq client tool and not the main ntpd daemon, the impact is considered less severe. Organizations should still consider updating to newer versions of NTP when available (NVD).
Additional resources
Source: This report was generated using AI
Related NixOS vulnerabilities:
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