Integer overflow in Teeworlds Teeworlds

1) Integer overflow

EUVDB-ID: #VU30300

Risk: High

CVSSv4.0: 8.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber]

CVE-ID: CVE-2019-20787

CWE-ID: CWE-190 - Integer overflow

Exploit availability: No

Description

The vulnerability allows a remote non-authenticated attacker to execute arbitrary code.

Teeworlds before 0.7.4 has an integer overflow when computing a tilemap size.

Mitigation

Install update from vendor's website.

Vulnerable software versions

Teeworlds: 0.7.0 - 0.7.3.1

CPE2.3

• cpe:2.3:a:teeworlds:teeworlds:0.7.0:*:*:*:*:*:*:*
• cpe:2.3:a:teeworlds:teeworlds:0.7.1:*:*:*:*:*:*:*
• cpe:2.3:a:teeworlds:teeworlds:0.7.2:*:*:*:*:*:*:*

External links

https://lists.opensuse.org/opensuse-security-announce/2020-04/msg00044.html
https://lists.opensuse.org/opensuse-security-announce/2020-04/msg00045.html
https://www.teeworlds.com/forum/viewtopic.php?pid=123860

Q & A

Can this vulnerability be exploited remotely?

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

How the attacker can exploit this vulnerability?

The attacker would have to trick the victim to open a a specially crafted file.

Is there known malware, which exploits this vulnerability?

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