CVE-2020-5253
NixOS vulnerability analysis and mitigation

Overview

CVE-2020-5253 is a high-severity vulnerability affecting NetHack version 3.4.3 and earlier versions. The vulnerability was discovered and disclosed on March 8, 2020, impacting the configuration file handling mechanism in NetHack (GitHub Advisory).

Technical details

The vulnerability involves the improper handling of character escaping in the configuration file (typically .nethackrc). This security flaw could be exploited through malicious manipulation of escaped characters in the configuration file (GitHub Advisory).

Impact

The vulnerability could lead to privilege escalation when exploited, potentially allowing attackers to gain unauthorized access to system resources (GitHub Advisory).

Mitigation and workarounds

The vulnerability was patched in NetHack version 3.6.0 with commit 612755b. As version 3.4.3 is no longer supported, users are strongly advised to upgrade to version 3.6.0 or later. No workarounds are available for affected versions (GitHub Advisory).

Additional resources


SourceThis report was generated using AI

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