Critical severity · published Jun 22, 2020
CVE-2020-14983
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
9.8
CVSS
2.7%
EPSS
No
On KEV
Description
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)2.7% · higher than 86% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
BA
Backports · Opensuse
sle-15 · source: NVD
CD
Chocolate Doom · Chocolate-doom
3.0.0 · source: NVD
CD
Crispy Doom · Chocolate-doom
5.8.0 · source: NVD
LE
Leap · Opensuse
15.1; 15.2 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2020-14983
CVE.org
https://www.cve.org/CVERecord?id=CVE-2020-14983
Mailing List
http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00002.html
Mailing List
http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00007.html
Mailing List
http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00012.html
Exploit
https://github.com/chocolate-doom/chocolate-doom/issues/1293