CVE-2020-5211: NetHack AUTOCOMPLETE configuration file option is subject to a buffer overflow
First published: Tue Jan 28 2020(Updated: )
In NetHack before 3.6.5, an invalid extended command in value for the AUTOCOMPLETE configuration file option 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. Users should upgrade to NetHack 3.6.5.
Credit: security-advisories@github.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| NetHack | <3.6.5 |
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Frequently Asked Questions
What is the severity of CVE-2020-5211?
CVE-2020-5211 has a high severity rating due to its potential for remote code execution and privilege escalation.
How do I fix CVE-2020-5211?
To fix CVE-2020-5211, you should upgrade to NetHack version 3.6.5 or later.
What systems are affected by CVE-2020-5211?
CVE-2020-5211 affects systems that have NetHack installed with suid or sgid permissions.
Can CVE-2020-5211 lead to a system crash?
Yes, CVE-2020-5211 can cause a buffer overflow resulting in a crash.
Is it safe to use older versions of NetHack after CVE-2020-5211 has been disclosed?
It is not safe to use older versions of NetHack after the disclosure of CVE-2020-5211 due to the identified vulnerabilities.
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