CVE-2021-37848

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Source

https://cve.org/CVERecord?id=CVE-2021-37848

Import Source

https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-37848.json

JSON Data

https://api.osv.dev/v1/vulns/CVE-2021-37848

Published

2021-08-02T20:15:08.303Z

Modified

2026-04-11T18:44:51.313489Z

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

common/password.c in Pengutronix barebox through 2021.07.0 leaks timing information because strncmp is used during hash comparison.

References

Affected packages

Git / github.com/saschahauer/barebox

Affected ranges

Type: GIT
Repo: https://github.com/saschahauer/barebox
Events: Introduced

0 Unknown introduced commit / All previous commits are affected

Fixed

a3337563c705bc8e0cf32f910b3e9e3c43d962ff

Type: GIT
Repo: https://github.com/saschahauer/barebox
Events: Introduced

0 Unknown introduced commit / All previous commits are affected

Fixed

a3337563c705bc8e0cf32f910b3e9e3c43d962ff

Database specific

vanir_signatures

[
    {
        "id": "CVE-2021-37848-00cbff65",
        "target": {
            "file": "common/password.c"
        },
        "signature_version": "v1",
        "source": "https://github.com/saschahauer/barebox/commit/a3337563c705bc8e0cf32f910b3e9e3c43d962ff",
        "signature_type": "Line",
        "digest": {
            "line_hashes": [
                "286483416564148237014664334187897996842",
                "82341561494851006650848126628061910030",
                "160300210200201742434445603001761179386",
                "331255837984390417579900180276178061273",
                "71206244788899728916889356691555085839",
                "256458294048974650112929662464190582585",
                "333251219697399135318302262459666338848",
                "183776022809160989712221249666787241014",
                "254544937353092481425502287652833645885",
                "77921965859436756916281033906327323109",
                "230797779611143726437514116441912154259",
                "32386485479158884066927671304407540509"
            ],
            "threshold": 0.9
        },
        "deprecated": false
    },
    {
        "id": "CVE-2021-37848-63c8d193",
        "target": {
            "function": "check_passwd",
            "file": "common/password.c"
        },
        "signature_version": "v1",
        "source": "https://github.com/saschahauer/barebox/commit/a3337563c705bc8e0cf32f910b3e9e3c43d962ff",
        "signature_type": "Function",
        "digest": {
            "function_hash": "90977046801678930462450758757847571578",
            "length": 1171.0
        },
        "deprecated": false
    }
]

source

"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-37848.json"

vanir_signatures_modified

"2026-04-11T18:44:51Z"

unresolved_ranges

[
    {
        "events": [
            {
                "introduced": "0"
            },
            {
                "last_affected": "2021.07.0"
            }
        ]
    },
    {
        "events": [
            {
                "introduced": "0"
            },
            {
                "last_affected": "2021.07.0"
            }
        ]
    }
]