The server in Chocolate Doom 3.0.0 and Crispy Doom 5.8.0 doesn't validate the user-controlled num_players value, leading to a buffer overflow. A malicious user can overwrite the server's stack.
http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00012.html
http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00007.html
http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00002.html
https://github.com/chocolate-doom/chocolate-doom/issues/1293
Source: Mitre, NVD
Published: 2020-06-22
Updated: 2024-11-21
Base Score: 7.5
Vector: CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:P
Severity: High
Base Score: 9.8
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Severity: Critical
EPSS: 0.00681