CVE-2023-49284

CVSS 3.1 Score 6.6 of 10 (medium)

Details

Published Dec 5, 2023
Updated: Dec 8, 2023
CWE ID 436

Summary

CVE-2023-49284: The fish shell, a popular command line interface for macOS, Linux, and other systems, contains a design flaw that allows Unicode non-characters used for marking wildcards and expansions to be misinterpreted in command substitution output. This can result in unexpected behavior, potentially leading to denial of service or information disclosure under certain circumstances. The issue has affected all versions of fish released in the last 15 years and was introduced before the version control system. Fish shell 3.6.2 has been released to address this vulnerability, and users are strongly advised to upgrade as soon as possible. There are currently no known workarounds for this issue.

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