SB2023010613 - Multiple vulnerabilities in PocketMine-MP

Description

This security bulletin contains information about 2 vulnerabilities.

1) Input validation error (CVE-ID: N/A)

CWE-ID: CWE-20 - Improper input validation

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to insufficient validation of user-supplied input. A remote attacker can pass specially crafted input to the application and perform a denial of service (DoS) attack.

2) Inefficient Algorithmic Complexity (CVE-ID: N/A)

CWE-ID: CWE-407 - Inefficient Algorithmic Complexity

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Green

The vulnerability allows a remote attacker to cause a denial of service.

The vulnerability exists due to inefficient algorithmic complexity in ModalFormResponsePacket processing when handling very large JSON modal form responses. A remote attacker can send large numbers of specially crafted packets to cause a denial of service.

Remediation

Install update from vendor's website.

References

• https://github.com/pmmp/PocketMine-MP/releases/tag/4.12.5
• https://github.com/pmmp/PocketMine-MP/security/advisories/GHSA-7m9r-rq9j-wmmh
• https://github.com/advisories/GHSA-7m9r-rq9j-wmmh