CVE-2021-45958

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Source
https://cve.org/CVERecord?id=CVE-2021-45958
Import Source
https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2021-45958.json
JSON Data
https://api.test.osv.dev/v1/vulns/CVE-2021-45958
Aliases
Downstream
Related
Published
2022-01-01T00:15:08.813Z
Modified
2026-05-28T04:07:10.545064892Z
Severity
  • 5.5 (Medium) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H CVSS Calculator
Summary
[none]
Details

UltraJSON (aka ujson) through 5.1.0 has a stack-based buffer overflow in Buffer_AppendIndentUnchecked (called from encode). Exploitation can, for example, use a large amount of indentation.

Database specific 
{
    "unresolved_ranges": [
        {
            "vendor_product": "debian:debian_linux",
            "cpes": [
                "cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*"
            ],
            "extracted_events": [
                {
                    "last_affected": "9.0"
                }
            ],
            "source": "CPE_STRING"
        },
        {
            "vendor_product": "fedoraproject:fedora",
            "cpes": [
                "cpe:2.3:o:fedoraproject:fedora:35:*:*:*:*:*:*:*",
                "cpe:2.3:o:fedoraproject:fedora:36:*:*:*:*:*:*:*",
                "cpe:2.3:o:fedoraproject:fedora:37:*:*:*:*:*:*:*"
            ],
            "extracted_events": [
                {
                    "last_affected": "35"
                },
                {
                    "last_affected": "36"
                },
                {
                    "last_affected": "37"
                }
            ],
            "source": "CPE_STRING"
        }
    ]
}
References

Affected packages

Git / github.com/ultrajson/ultrajson

Affected ranges

Type
GIT
Repo
https://github.com/ultrajson/ultrajson
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed
f6860f1f3d8d4e92b9be0e5815355a8976c6e75b
Database specific 
{
    "extracted_events": [
        {
            "introduced": "0"
        },
        {
            "fixed": "5.2.0"
        }
    ],
    "source": "CPE_RANGE",
    "cpe": "cpe:2.3:a:ultrajson_project:ultrajson:*:*:*:*:*:python:*:*"
}

Affected versions

2.*
2.0.0
2.0.1
2.0.2
2.0.3
3.*
3.0.0
3.1.0
3.2.0
4.*
4.0.0
4.0.1
4.0.2
4.1.0
4.2.0
4.3.0
5.*
5.0.0
5.1.0
v1.*
v1.34
v1.35

Database specific

source 
"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2021-45958.json"