CVE-2022-51008

Description

PocketMine-MP before 4.12.3 fails to limit unauthenticated sessions, allowing attackers to exhaust player slots by creating sessions without sending LoginPacket. Attackers can flood the server with unauthenticated connections that occupy max-player slots, preventing legitimate players from joining.

References

• https://github.com/pmmp/PocketMine-MP/commit/59be901efe6b7833e69e638e0e1497051ce96fa7
• https://github.com/pmmp/PocketMine-MP/security/advisories/GHSA-474q-9hgp-hcvx
• https://www.vulncheck.com/advisories/pocketmine-mp-before-4.12.3-denial-of-service-via-unauthenticated-sessions