CVE-2020-20739

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Source
https://cve.org/CVERecord?id=CVE-2020-20739
Import Source
https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2020-20739.json
JSON Data
https://api.test.osv.dev/v1/vulns/CVE-2020-20739
Downstream
Published
2020-11-20T19:15:11.710Z
Modified
2026-04-11T20:35:18.696457Z
Severity
  • 5.3 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N CVSS Calculator
Summary
[none]
Details

imvips2dz in /libvips/libvips/deprecated/imvips2dz.c in libvips before 8.8.2 has an uninitialized variable which may cause the leakage of remote server path or stack address.

Database specific 
{
    "unresolved_ranges": [
        {
            "cpe": "cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*",
            "source": "CPE_FIELD",
            "extracted_events": [
                {
                    "last_affected": "9.0"
                }
            ]
        },
        {
            "cpe": "cpe:2.3:o:fedoraproject:fedora:32:*:*:*:*:*:*:*",
            "source": "CPE_FIELD",
            "extracted_events": [
                {
                    "last_affected": "32"
                },
                {
                    "last_affected": "32"
                }
            ]
        }
    ]
}
References

Affected packages

Git / github.com/libvips/libvips

Affected ranges

Type
GIT
Repo
https://github.com/libvips/libvips
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed
6ea76f9632edd93a716533acb78e7f6bd7089fe4
Fixed
2ab5aa7bf515135c2b02d42e9a72e4c98e17031a
Database specific 
{
    "cpe": "cpe:2.3:a:libvips:libvips:*:*:*:*:*:*:*:*",
    "source": [
        "CPE_FIELD",
        "REFERENCES"
    ],
    "extracted_events": [
        {
            "introduced": "0"
        },
        {
            "fixed": "8.8.2"
        }
    ]
}

Affected versions

v7.*
v7.28.0
v8.*
v8.0-beta
v8.1
v8.2.2
v8.3.0
v8.5.1
v8.5.2
v8.5.3
v8.6.0
v8.6.0-alpha1
v8.6.0-alpha2
v8.6.0-beta1
v8.6.0-beta2
v8.7.0
v8.7.0-alpha2
v8.7.0-rc1
v8.7.0-rc2
v8.7.0-rc3
v8.8.0
v8.8.0-rc1
v8.8.0-rc2
v8.8.0-rc3
v8.8.1

Database specific

source 
"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2020-20739.json"
vanir_signatures_modified 
"2026-04-11T20:35:18Z"
vanir_signatures 
[
    {
        "signature_type": "Function",
        "id": "CVE-2020-20739-12027fd6",
        "signature_version": "v1",
        "deprecated": false,
        "digest": {
            "function_hash": "166909256359593029980035354932831932721",
            "length": 1463.0
        },
        "target": {
            "file": "libvips/deprecated/im_vips2dz.c",
            "function": "im_vips2dz"
        },
        "source": "https://github.com/libvips/libvips/commit/2ab5aa7bf515135c2b02d42e9a72e4c98e17031a"
    },
    {
        "signature_type": "Function",
        "id": "CVE-2020-20739-45a6fd0e",
        "signature_version": "v1",
        "deprecated": false,
        "digest": {
            "function_hash": "222320631276143992629725486564266434665",
            "length": 4038.0
        },
        "target": {
            "file": "libvips/foreign/jpeg2vips.c",
            "function": "read_jpeg_header"
        },
        "source": "https://github.com/libvips/libvips/commit/6ea76f9632edd93a716533acb78e7f6bd7089fe4"
    },
    {
        "signature_type": "Line",
        "id": "CVE-2020-20739-9c4272ef",
        "signature_version": "v1",
        "deprecated": false,
        "digest": {
            "line_hashes": [
                "125972106182712768501205550043563232520",
                "86039469205557756946793548815830721573",
                "88821371842791875340927780191313916485",
                "77321317125073647324253898459710890524",
                "154057355696739768365072229679567670185",
                "244277135587429140701503486848767944083",
                "21734349347026488473724128397556756436",
                "9526486098358187007820695027713276441",
                "216634604053247192044250025449613641808",
                "286742946168779614417633791036156230208",
                "234081553680285278521543908288125626223",
                "77644325345481531206301909079295925322",
                "58189127241607797732055871855340681054",
                "127209824266690391183367214157703481504",
                "262563188951938984018963082140095202961",
                "36386234001265852768838143608841138472"
            ],
            "threshold": 0.9
        },
        "target": {
            "file": "libvips/foreign/jpeg2vips.c"
        },
        "source": "https://github.com/libvips/libvips/commit/6ea76f9632edd93a716533acb78e7f6bd7089fe4"
    },
    {
        "signature_type": "Line",
        "id": "CVE-2020-20739-ac65903d",
        "signature_version": "v1",
        "deprecated": false,
        "digest": {
            "line_hashes": [
                "8760043487014167241584431414302043730",
                "171250312443488248624066404327138487390",
                "64839101584638378883248014138464275044",
                "228273560859497549535549242024299462680"
            ],
            "threshold": 0.9
        },
        "target": {
            "file": "libvips/deprecated/im_vips2dz.c"
        },
        "source": "https://github.com/libvips/libvips/commit/2ab5aa7bf515135c2b02d42e9a72e4c98e17031a"
    }
]