Remote code execution in Crispy Doom



Published: 2020-07-07 | Updated: 2020-08-19
Risk High
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2020-14983
CWE-ID CWE-119
Exploitation vector Network
Public exploit N/A
Vulnerable software
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Crispy Doom
Server applications / Game servers

Vendor chocolate-doom

Security Bulletin

This security bulletin contains one high risk vulnerability.

1) Buffer overflow

EUVDB-ID: #VU29543

Risk: High

CVSSv3.1: 9 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:U/RC:C]

CVE-ID: CVE-2020-14983

CWE-ID: CWE-119 - Improper Restriction of Operations within the Bounds of a Memory Buffer

Exploit availability: No

Description

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The vulnerability exists due to a boundary error when processing num_players value in Chocolate Doom. A remote attacker can pass an overly long num_players value, trigger memory corruption and execute arbitrary code on the target system.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.

Mitigation

Cybersecurity Help is currently unaware of any official solution to address this vulnerability.

Vulnerable software versions

Crispy Doom: 5.8.0

CPE2.3 External links

http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00002.html
http://github.com/chocolate-doom/chocolate-doom/issues/1293

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.



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