CVEvulnerability

CVE-2020-5234

6.5 MEDIUM Published 2020-01-31 Modified 2026-06-17 Official page ↗
Status
Modified
Published
2020-01-31
Last modified
2026-06-17
Assigner
[email protected]
CVSS 3.1 ([email protected])
4.8 MEDIUM — CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:N/I:N/A:H
CVSS 3.1 ([email protected])
6.5 MEDIUM — CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CVSS 2.0 ([email protected])
6.8 MEDIUM — AV:N/AC:L/Au:S/C:N/I:N/A:C
Weaknesses
CWE-121, CWE-787

Description

MessagePack for C# and Unity before version 1.9.11 and 2.1.90 has a vulnerability where untrusted data can lead to DoS attack due to hash collisions and stack overflow. Review the linked GitHub Security Advisory for more information and remediation steps.

Affected configurations

• messagepack messagepack (< 1.9.3) • messagepack messagepack (>= 2.0.323 < 2.1.80) • messagepack messagepack 2.0.94 • messagepack messagepack 2.0.110 • messagepack messagepack 2.0.119 • messagepack messagepack 2.0.123 • messagepack messagepack 2.0.204 • messagepack messagepack 2.0.270 • messagepack messagepack 2.0.299

Related

Weakness · CWE (2)

  • CWE-121 Stack-based Buffer Overflow weakness
  • CWE-787 Out-of-bounds Write weakness

References