CVE-2021-27343

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Source

https://cve.org/CVERecord?id=CVE-2021-27343

Import Source

https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-27343.json

JSON Data

https://api.osv.dev/v1/vulns/CVE-2021-27343

Published

2021-04-06T13:15:14Z

Modified

2026-04-11T16:26:12Z

Severity

7.5 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N CVSS Calculator

Summary

[none]

Details

SerenityOS Unspecified is affected by: Buffer Overflow. The impact is: obtain sensitive information (context-dependent). The component is: /Userland/Libraries/LibCrypto/ASN1/DER.h Crypto::der_decode_sequence() function. The attack vector is: Parsing RSA Key ASN.1.

References

Affected packages

Git / github.com/serenityos/serenity

Affected ranges

Type: GIT
Repo: https://github.com/serenityos/serenity
Events: Introduced

0 Unknown introduced commit / All previous commits are affected

Fixed

48fbf6a88d4822a1e5470cf08f29464511bd72c1

Database specific

source

"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-27343.json"

vanir_signatures

[
    {
        "deprecated": false,
        "digest": {
            "line_hashes": [
                "246327850437052761092821625439304214026",
                "308301083473644505651325781879639804677",
                "77560250645919544720371500414797554081",
                "12573670662844942890449571103667546113"
            ],
            "threshold": 0.9
        },
        "id": "CVE-2021-27343-883a05d8",
        "signature_type": "Line",
        "signature_version": "v1",
        "source": "https://github.com/serenityos/serenity/commit/48fbf6a88d4822a1e5470cf08f29464511bd72c1",
        "target": {
            "file": "Userland/Libraries/LibCrypto/NumberTheory/ModularFunctions.cpp"
        }
    }
]

vanir_signatures_modified

"2026-04-11T16:26:12Z"