CVE-2020-5234

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Source
https://cve.org/CVERecord?id=CVE-2020-5234
Import Source
https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2020-5234.json
JSON Data
https://api.test.osv.dev/v1/vulns/CVE-2020-5234
Aliases
Published
2020-01-31T18:15:11.860Z
Modified
2026-05-16T03:55:57.133425974Z
Severity
  • 6.5 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
Summary
[none]
Details

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.

Database specific 
{
    "unresolved_ranges": [
        {
            "cpes": [
                "cpe:2.3:a:messagepack:messagepack:*:*:*:*:*:c\\#:*:*",
                "cpe:2.3:a:messagepack:messagepack:2.0.110:alpha:*:*:*:c\\#:*:*",
                "cpe:2.3:a:messagepack:messagepack:2.0.119:beta:*:*:*:c\\#:*:*",
                "cpe:2.3:a:messagepack:messagepack:2.0.123:beta:*:*:*:c\\#:*:*",
                "cpe:2.3:a:messagepack:messagepack:2.0.204:beta:*:*:*:c\\#:*:*",
                "cpe:2.3:a:messagepack:messagepack:2.0.270:rc:*:*:*:c\\#:*:*",
                "cpe:2.3:a:messagepack:messagepack:2.0.299:rc:*:*:*:c\\#:*:*",
                "cpe:2.3:a:messagepack:messagepack:2.0.94:alpha:*:*:*:c\\#:*:*"
            ],
            "source": "CPE_FIELD",
            "vendor_product": "messagepack:messagepack",
            "extracted_events": [
                {
                    "fixed": "1.9.3"
                },
                {
                    "introduced": "2.0.323"
                },
                {
                    "fixed": "2.1.80"
                },
                {
                    "last_affected": "2.0.94-alpha"
                },
                {
                    "last_affected": "2.0.110-alpha"
                },
                {
                    "last_affected": "2.0.119-beta"
                },
                {
                    "last_affected": "2.0.123-beta"
                },
                {
                    "last_affected": "2.0.204-beta"
                },
                {
                    "last_affected": "2.0.270-rc"
                },
                {
                    "last_affected": "2.0.299-rc"
                }
            ]
        }
    ]
}
References

Affected packages