A vulnerability classified as critical was found in Teeworlds 0.7.2. This vulnerability affects the function CMap::Load of the file engine/shared/map.cpp. The manipulation with an unknown input leads to a integer overflow vulnerability. The CWE definition for the vulnerability is CWE-190. The product performs a calculation that can produce an integer overflow or wraparound, when the logic assumes that the resulting value will always be larger than the original value. This can introduce other weaknesses when the calculation is used for resource management or execution control. As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:

In Teeworlds 0.7.2, there is an integer overflow in CMap::Load() in engine/shared/map.cpp that can lead to a buffer overflow, because multiplication of width and height is mishandled.

The bug was discovered 03/23/2019. The weakness was released 04/05/2019 (Website). The advisory is available at lists.fedoraproject.org. This vulnerability was named CVE-2019-10877 since 04/05/2019. The exploitation appears to be easy. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. Technical details are known, but there is no available exploit.

The vulnerability was handled as a non-public zero-day exploit for at least 13 days. During that time the estimated underground price was around $0-$5k.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

Entries connected to this vulnerability are available at VDB-133067 and VDB-133068.

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• Teeworlds

Version

• 0.7.2

CPE 2.3info

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CPE 2.2info

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