CVE-2020-5234

See a problem?
Please try reporting it to the source first.

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

GHSA-7q36-4xx7-xcxf

Published

2020-01-31T18:15:11.860Z

Modified

2026-06-18T03:54:38.288373577Z

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": [
        {
            "source": "CPE_RANGE",
            "extracted_events": [
                {
                    "fixed": "1.9.3"
                },
                {
                    "introduced": "2.0.323"
                },
                {
                    "fixed": "2.1.80"
                }
            ],
            "cpes": [
                "cpe:2.3:a:messagepack:messagepack:*:*:*:*:*:c\\#:*:*"
            ],
            "vendor_product": "messagepack:messagepack"
        },
        {
            "cpes": [
                "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\\#:*:*"
            ],
            "extracted_events": [
                {
                    "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"
                }
            ],
            "source": "CPE_STRING",
            "vendor_product": "messagepack:messagepack"
        }
    ]
}

References

Affected packages

Git

github.com/MessagePack-CSharp/MessagePack-CSharp

Affected ranges

Type

GIT

Repo

https://github.com/MessagePack-CSharp/MessagePack-CSharp

Events

Introduced

Fixed

6cbd8196e7dbe9b8810d7620f4542c3db9388753

Database specific

{
    "source": "DESCRIPTION",
    "extracted_events": [
        {
            "introduced": "0"
        },
        {
            "fixed": "1.9.11"
        }
    ]
}

Affected versions

0.*

0.1.0-beta

0.2.0-beta

1.*

1.0.1

v.*

v.1.7.3.5

v.1.7.3.6

v1.*

v1.0.2

v1.0.3

v1.1.1

v1.1.2

v1.2.0

v1.2.1

v1.2.3

v1.3.0

v1.3.1

v1.3.2

v1.3.3

v1.4.0

v1.4.1

v1.4.2

v1.4.4

v1.5.0

v1.5.1

v1.6.0

v1.6.1

v1.6.1.2

v1.6.2

v1.7.0

v1.7.2

v1.7.3

v1.7.3.1

v1.7.3.2

v1.7.3.3

v1.7.3.4

v1.8.71-beta

v1.8.74

v1.8.80

v1.9.3

Database specific

source

"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2020-5234.json"

github.com/messagepack-csharp/messagepack-csharp

Affected ranges

Type

GIT

Repo

https://github.com/messagepack-csharp/messagepack-csharp

Events

Introduced

Fixed

56fa86219d01d0a183babbbbcb34abbdea588a02

Fixed

f88684078698386df02204f13faeff098a61f007

Database specific

{
    "source": "REFERENCES"
}

Affected versions

0.*

0.1.0-beta

0.2.0-beta

1.*

1.0.1

v1.*

v1.0.2

v1.0.3

v1.1.1

v1.1.2

v1.2.0

v1.2.1

v1.2.3

v1.3.0

v1.3.1

v1.3.2

v1.3.3

v1.4.0

v1.4.1

v1.4.2

v1.4.4

v1.5.0

v1.5.1

v1.6.0

v1.6.1

v1.6.1.2

v1.6.2

v1.7.0

v1.7.2

v1.7.3

v1.7.3.1

v1.7.3.2

v1.7.3.3

v1.7.3.4

v2.*

v2.0.110-alpha

v2.0.119-beta

v2.0.123-beta

v2.0.204-beta

v2.0.270-rc

v2.0.94-alpha

v2.1.80

Database specific

source

"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2020-5234.json"