CVE-2023-54355 json
PocketMine-MP 5.2.0 Server Crash via Incorrect EC Curve
published 2023-09-14 3 y ago modified 2026-10-08 31 d ago also GHSA-79rc-jjh6-rc89 , EUVD-2023-60620
- cvss
- 7.5
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.4%
- EPSS 0.4% chance of exploitation in 30 days, percentile 32%
- public exploits
- 0
- none known
Summary
PocketMine-MP versions before 5.3.1 and 4.23.1 fail to validate that the identityPublicKey in LoginPacket uses the required secp384r1 elliptic curve. Attackers can provide LoginPackets with keys using different curves or non-EC key types to pass login verification but trigger an uncaught exception during ECDH key derivation, crashing the server.
Patch / fix
- packagist pocketmine/pocketmine-mp 5.3.1
- pmmp PocketMine-MP 4.23.1, 5.3.1
CISA SSVC
- Exploitation
- none
- Automatable
- yes
- Technical impact
- partial
- Assessed
- 59 d ago
Exploit prediction
0.38% chance of exploitation in the next 30 days, higher than 32% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 4.0 | 8.7 | 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 |
| CNA | 3.1 | 7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
| CNA | 4.0 | 8.7 | 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:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X |
| GitHub | 3.1 | 7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| packagist | pocketmine/pocketmine-mp | >=5.2.0, <5.3.1 |
5.3.1 |
Affected products
- pmmp PocketMine-MP
Classification
- Weakness
-
- CWE-347 Improper Verification of Cryptographic Signature
References
-
github.com
/pmmp/PocketMine-MP/commit/4e646d19a4a1e0d082bd4d1f5a58ae0182a268d9
patch, web
-
github.com
/pmmp/PocketMine-MP/security/advisories/GHSA-79rc-jjh6-rc89
vendor-advisory, web
-
vulncheck.com
/advisories/pocketmine-mp-5.2.0-server-crash-via-incorrect-ec-curve
third-party-advisory
-
github.com
/pmmp/PocketMine-MP
package
Sources
- CVE List CVE-2023-54355
- GitHub Advisory GHSA-79rc-jjh6-rc89
- NVD CVE-2023-54355
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