CVE-2020-5211

NetHack AUTOCOMPLETE configuration file option is subject to a buffer overflow

Description

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.

Category

5.0
CVSS
Severity: Medium
CVSS 3.1 •
CVSS 2.0 •
EPSS 1.84% Top 20%
Third-Party Advisory github.com
Affected: NetHack NetHack
Published at:
Updated at:

References

Link Tags
https://github.com/NetHack/NetHack/security/advisories/GHSA-r788-4jf4-r9f7 third party advisory

Frequently Asked Questions

What is the severity of CVE-2020-5211?
CVE-2020-5211 has been scored as a medium severity vulnerability.
How to fix CVE-2020-5211?
To fix CVE-2020-5211, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2020-5211 being actively exploited in the wild?
It is possible that CVE-2020-5211 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~2% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2020-5211?
CVE-2020-5211 affects NetHack NetHack.
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