Affected versions: 3.6.0, 3.6.1, 3.6.2, 3.6.3, 3.6.4
First Patched Version: 3.6.5
Git commit(s): f3def5c0b999478da2d0a8f0b6a7c370a2065f77
Unknown options starting with -de and -i can cause a buffer overflow resulting in a crash or remote code execution/privilege escalation.
This vulnerability affects systems that have NetHack installed suid/sgid and shared systems that allow users to upload their own configuration files.
All users are urged to upgrade to NetHack 3.6.5 as soon as possible.
Additional information related to this advisory, if any, will be made available at https://nethack.org/security.
27-Jan-2020 NetHack 3.6.5 released with fix.
15-Jan-2020 Bug reported.
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