CVE-2022-51017

EUVD-2022-56046
PocketMine-MP versions before 3.26.5 and 4.0.5 fail to validate the length of skin data fields submitted by players, allowing uncapped values to exceed the 32767 byte TAG_String limit. Attackers can submit oversized skin data fields like skinID or geometryName to trigger exceptions during NBT data serialization, causing server crashes.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTPrimary
7.5 HIGH
NETWORK
LOW
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Awaiting analysis
This vulnerability is currently awaiting analysis.
Base Score
CVSS 3.x
EPSS Score
Percentile: 39.32%
Common Weakness Enumeration
References
https://github.com/pmmp/PocketMine-MP/commit/6492cac5c10f9fa8443ceddd2191a7b65b73f601
https://github.com/pmmp/PocketMine-MP/commit/958a9dbf0fe3131ab60319c5a939f5dfbfe5dfbb
https://github.com/pmmp/PocketMine-MP/security/advisories/GHSA-c6fg-99pr-25m9
https://www.vulncheck.com/advisories/pocketmine-mp-before-3.26.5-and-4.0.5-denial-of-service-via-skin-data