CVE-2021-27815

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Source
https://cve.org/CVERecord?id=CVE-2021-27815
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-27815.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2021-27815
Downstream
Published
2021-04-14T14:15:13.787Z
Modified
2026-07-09T00:13:23.786812Z
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

NULL Pointer Deference in the exif command line tool, when printing out XML formatted EXIF data, in exif v0.6.22 and earlier allows attackers to cause a Denial of Service (DoS) by uploading a malicious JPEG file, causing the application to crash.

Database specific 
{
    "unresolved_ranges": [
        {
            "source": "CPE_STRING",
            "cpes": [
                "cpe:2.3:o:fedoraproject:fedora:32:*:*:*:*:*:*:*",
                "cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:*",
                "cpe:2.3:o:fedoraproject:fedora:34:*:*:*:*:*:*:*"
            ],
            "vendor_product": "fedoraproject:fedora",
            "extracted_events": [
                {
                    "introduced": "32"
                },
                {
                    "last_affected": "32"
                },
                {
                    "introduced": "33"
                },
                {
                    "last_affected": "33"
                },
                {
                    "introduced": "34"
                },
                {
                    "last_affected": "34"
                }
            ]
        }
    ]
}
References

Affected packages

Git / github.com/libexif/exif

Affected ranges

Type
GIT
Repo
https://github.com/libexif/exif
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Last affected
edad134a28caaa7ea324b8c075bde52da05ad7d9
Fixed
eb84b0e3c5f2a86013b6fcfb800d187896a648fa
Fixed
f6334d9d32437ef13dc902f0a88a2be0063d9d1c
Database specific 
{
    "cpe": "cpe:2.3:a:libexif_project:exif:*:*:*:*:*:*:*:*",
    "source": [
        "CPE_RANGE",
        "REFERENCES"
    ],
    "extracted_events": [
        {
            "introduced": "0"
        },
        {
            "last_affected": "0.6.22"
        }
    ]
}

Affected versions

Other
cvs-migration
exif-0_6-release
exif-0_6_15-release
exif-0_6_17-release
exif-0_6_18-release
exif-0_6_19-release
exif-0_6_20-release
exif-0_6_21-release
exif-0_6_22-release
exif-0_6_9-release

Database specific

vanir_signatures 
[
    {
        "digest": {
            "length": 826.0,
            "function_hash": "117739525872714467810242060778568890977"
        },
        "signature_version": "v1",
        "source": "https://github.com/libexif/exif/commit/eb84b0e3c5f2a86013b6fcfb800d187896a648fa",
        "signature_type": "Function",
        "target": {
            "function": "escape_xml",
            "file": "exif/actions.c"
        },
        "id": "CVE-2021-27815-32de5894",
        "deprecated": false
    },
    {
        "digest": {
            "length": 774.0,
            "function_hash": "66487071761578745178268823097657667458"
        },
        "signature_version": "v1",
        "source": "https://github.com/libexif/exif/commit/f6334d9d32437ef13dc902f0a88a2be0063d9d1c",
        "signature_type": "Function",
        "target": {
            "function": "escape_xml",
            "file": "exif/actions.c"
        },
        "id": "CVE-2021-27815-5a7bcf89",
        "deprecated": false
    },
    {
        "digest": {
            "threshold": 0.9,
            "line_hashes": [
                "56429957118893573836594359231792757542",
                "236708506390338073920272238376695567027",
                "251815281604461825816962047897251030965"
            ]
        },
        "signature_version": "v1",
        "source": "https://github.com/libexif/exif/commit/f6334d9d32437ef13dc902f0a88a2be0063d9d1c",
        "signature_type": "Line",
        "target": {
            "file": "exif/actions.c"
        },
        "id": "CVE-2021-27815-d8c64ba2",
        "deprecated": false
    },
    {
        "digest": {
            "threshold": 0.9,
            "line_hashes": [
                "267985955826095369399255340329894694665",
                "206567539733347984706140851524349779254",
                "161934927561592451764293787085084039009",
                "166523331223495064149312083299725894127"
            ]
        },
        "signature_version": "v1",
        "source": "https://github.com/libexif/exif/commit/eb84b0e3c5f2a86013b6fcfb800d187896a648fa",
        "signature_type": "Line",
        "target": {
            "file": "exif/actions.c"
        },
        "id": "CVE-2021-27815-e50fe298",
        "deprecated": false
    }
]
vanir_signatures_modified 
"2026-07-09T00:13:23Z"
source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-27815.json"