CVE-2021-3881

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Source

https://cve.org/CVERecord?id=CVE-2021-3881

Import Source

https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-3881.json

JSON Data

https://api.osv.dev/v1/vulns/CVE-2021-3881

Published

2021-10-15T14:15:07.907Z

Modified

2026-07-09T01:31:47.035044Z

Severity

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

Summary

[none]

Details

libmobi is vulnerable to Out-of-bounds Read

References

Affected packages

Git / github.com/bfabiszewski/libmobi

Affected ranges

Type

GIT

Repo

https://github.com/bfabiszewski/libmobi

Events

Introduced

Last affected

c814c4aba4e090fa32805ff8ff459df6c2c61b5c

Fixed

bec783e6212439a335ba6e8df7ab8ed610ca9a21

Database specific

{
    "source": [
        "CPE_RANGE",
        "REFERENCES"
    ],
    "cpe": "cpe:2.3:a:libmobi_project:libmobi:*:*:*:*:*:*:*:*",
    "extracted_events": [
        {
            "introduced": "0"
        },
        {
            "last_affected": "0.7"
        }
    ]
}

Affected versions

v0.*

v0.2

v0.3

v0.4

v0.5

v0.6

v0.7

Database specific

vanir_signatures_modified

"2026-07-09T01:31:47Z"

source

"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-3881.json"

vanir_signatures

[
    {
        "id": "CVE-2021-3881-8e24c8e7",
        "digest": {
            "line_hashes": [
                "60941633953866768929173956639993985641",
                "183843454184476539211598106013255501549",
                "143765066257043244895911758730691455220",
                "147513665195283254971157146680447318182",
                "140351231808443371633715668491813990186",
                "296309073408020226762114275721447844600",
                "127278800796710865628981060257648791801",
                "101974956512608900157789862989947945076"
            ],
            "threshold": 0.9
        },
        "signature_version": "v1",
        "signature_type": "Line",
        "source": "https://github.com/bfabiszewski/libmobi/commit/bec783e6212439a335ba6e8df7ab8ed610ca9a21",
        "deprecated": false,
        "target": {
            "file": "src/compression.h"
        }
    },
    {
        "id": "CVE-2021-3881-bbe46003",
        "digest": {
            "function_hash": "4624666305156171928350655180407704292",
            "length": 1545.0
        },
        "signature_version": "v1",
        "signature_type": "Function",
        "source": "https://github.com/bfabiszewski/libmobi/commit/bec783e6212439a335ba6e8df7ab8ed610ca9a21",
        "deprecated": false,
        "target": {
            "function": "mobi_decompress_huffman_internal",
            "file": "src/compression.c"
        }
    },
    {
        "id": "CVE-2021-3881-d75cbc27",
        "digest": {
            "function_hash": "15982606896711580559032318799110888001",
            "length": 1347.0
        },
        "signature_version": "v1",
        "signature_type": "Function",
        "source": "https://github.com/bfabiszewski/libmobi/commit/bec783e6212439a335ba6e8df7ab8ed610ca9a21",
        "deprecated": false,
        "target": {
            "function": "mobi_parse_huff",
            "file": "src/read.c"
        }
    },
    {
        "id": "CVE-2021-3881-f6596980",
        "digest": {
            "line_hashes": [
                "320248425003798492802026060138869397908",
                "53738011554090313359502918295970605591",
                "80067300861157203983853007628640119367",
                "229029659698259163062567162243171267234"
            ],
            "threshold": 0.9
        },
        "signature_version": "v1",
        "signature_type": "Line",
        "source": "https://github.com/bfabiszewski/libmobi/commit/bec783e6212439a335ba6e8df7ab8ed610ca9a21",
        "deprecated": false,
        "target": {
            "file": "src/compression.c"
        }
    },
    {
        "id": "CVE-2021-3881-f796c5c2",
        "digest": {
            "line_hashes": [
                "83711654140281194512571502054329484444",
                "141291084972431703333183233355891047729",
                "217331745260185525010947671041549721309",
                "199430023177546943535288491088830199563"
            ],
            "threshold": 0.9
        },
        "signature_version": "v1",
        "signature_type": "Line",
        "source": "https://github.com/bfabiszewski/libmobi/commit/bec783e6212439a335ba6e8df7ab8ed610ca9a21",
        "deprecated": false,
        "target": {
            "file": "src/read.c"
        }
    }
]