CVE-2020-5213

Published: Jan 28, 2020Modified: Jun 17, 2026

9.8

Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Exploitability: 3.9 / Impact: 5.9

Source: NVD

Description

In NetHack before 3.6.5, too long of a value for the SYMBOL 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.

Affected (1)

Products: Nethack: Nethack

1 product

Configuration A

1 vulnerable

Vulnerable Software	Affected Versions
Nethack Nethack	Before 3.6.5

Related CWEs

Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')

The product copies an input buffer to an output buffer without verifying that the size of the input buffer is less than the size of the output buffer, leading to a buffer overflow.

References (2)

https://github.com/NetHack/NetHack/security/advisories/GHSA-rr25-4v34-pr7v

Source: security-advisories@github.com

Third Party Advisory

https://github.com/NetHack/NetHack/security/advisories/GHSA-rr25-4v34-pr7v

Source: af854a3a-2127-422b-91ae-364da2661108

Third Party Advisory

Timeline

No history available yet.