Cloud Vulnerability DB
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Vulnerability DatabaseCVE-2023-38856
CVE-2023-38856:
NixOS vulnerability analysis and mitigation
Overview
Buffer Overflow vulnerability in libxls v1.6.2 allows a remote attacker to execute arbitrary code and cause a denial of service via a crafted XLS file to the get_string function in xlstool.c:411. The vulnerability was discovered and disclosed in August 2023 (NVD).
Technical details
The vulnerability exists in the get_string function located in xlstool.c:411 of libxls version 1.6.2. The issue stems from improper boundary checking when processing XLS files, which can lead to a heap buffer overflow condition. The vulnerability has been assigned a CVSS v3.1 Base Score of 6.5 MEDIUM with the vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H (NVD).
Impact
Successful exploitation of this vulnerability could allow an attacker to execute arbitrary code on the affected system or cause a denial of service condition through a specially crafted XLS file (NVD).
Mitigation and workarounds
Users should upgrade to a patched version of libxls when available. In the meantime, it is recommended to exercise caution when processing untrusted XLS files and implement additional validation measures (NVD).
Additional resources
Source: This report was generated using AI
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