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/cve-osv-conversion/osv-output/CVE-2020-5234.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2020-5234
Aliases
Published
2020-01-31T18:15:11.860Z
Modified
2026-07-08T06:00:21.706283343Z
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:2.0.94:alpha:*:*:*:c\\#:*:*"
            ],
            "vendor_product": "messagepack:messagepack",
            "extracted_events": [
                {
                    "introduced": "2.0.94-alpha"
                },
                {
                    "last_affected": "2.0.94-alpha"
                }
            ],
            "source": "CPE_STRING"
        }
    ]
}
References

Affected packages

Git / github.com/messagepack-csharp/messagepack-csharp

Affected ranges

Type
GIT
Repo
https://github.com/messagepack-csharp/messagepack-csharp
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed
129239b10751dd3815610aaac09ca8420c15f881
Introduced
7f591effd1c85a8d2882b0d48ca772e64293581d
Fixed
6b89b9ad778e6c09f335d5807db6776f7105a046
Introduced
0a344fa81f225dd14feab4c85217c3368cfde1a7
Last affected
1cc149cbc9b8cbdc1fdb9e7cd688181f16034675
Fixed
56fa86219d01d0a183babbbbcb34abbdea588a02
Fixed
f88684078698386df02204f13faeff098a61f007
Database specific 
{
    "cpe": [
        "cpe:2.3:a:messagepack:messagepack:*:*:*:*:*:c\\#:*:*",
        "cpe:2.3:a:messagepack:messagepack:2.0.94:alpha:*:*:*: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\\#:*:*"
    ],
    "extracted_events": [
        {
            "introduced": "0"
        },
        {
            "fixed": "1.9.3"
        },
        {
            "introduced": "2.0.323"
        },
        {
            "fixed": "2.1.80"
        },
        {
            "introduced": "2.0.94-alpha"
        },
        {
            "last_affected": "2.0.94-alpha"
        },
        {
            "introduced": "2.0.110-alpha"
        },
        {
            "last_affected": "2.0.110-alpha"
        },
        {
            "introduced": "2.0.119-beta"
        },
        {
            "last_affected": "2.0.119-beta"
        },
        {
            "introduced": "2.0.123-beta"
        },
        {
            "last_affected": "2.0.123-beta"
        },
        {
            "introduced": "2.0.204-beta"
        },
        {
            "last_affected": "2.0.204-beta"
        },
        {
            "introduced": "2.0.270-rc"
        },
        {
            "last_affected": "2.0.270-rc"
        },
        {
            "introduced": "2.0.299-rc"
        },
        {
            "last_affected": "2.0.299-rc"
        }
    ],
    "source": [
        "CPE_RANGE",
        "CPE_STRING",
        "REFERENCES"
    ]
}

Affected versions

0.*
0.1.0-beta
0.2.0-beta
1.*
1.0.1
2.*
2.0.110-alpha
2.0.119-beta
2.0.123-beta
2.0.204-beta
2.0.270-rc
2.0.299-rc
2.0.94-alpha
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
v2.*
v2.0.110-alpha
v2.0.119-beta
v2.0.123-beta
v2.0.204-beta
v2.0.270-rc
v2.0.299-rc
v2.0.94-alpha
v2.1.80

Database specific

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