Medium
Security advisory
im_vips2dz in /libvips/libvips/deprecated/im_vips2dz.c in libvips before 8.8.2 has an uninitialized variable which may cause the leakage of remote server path or stack address.
- Products
- Not specified
- Affected versions
- Not specified
- Fixed versions
- Not specified
- CVEs
- CVE-2020-20739
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 31 Oct 2026, 12:34 UTC · Revision 1
Source evidence
im_vips2dz in /libvips/libvips/deprecated/im_vips2dz.c in libvips before 8.8.2 has an uninitialized variable which may cause the leakage of remote server path or stack address.
osv:CVE-2020-20739
Complete source record
{
"id": "46b111e5b10a196afbf16e4be8496a377bc870f101270bf47b66567b8f313d8c",
"url": "https://osv.dev/vulnerability/CVE-2020-20739",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "CVE-2020-20739",
"summary": "im_vips2dz in /libvips/libvips/deprecated/im_vips2dz.c in libvips before 8.8.2 has an uninitialized variable which may cause the leakage of remote server path or stack address.",
"evidence": "osv:CVE-2020-20739",
"products": [],
"severity": "medium",
"structured": {
"id": "CVE-2020-20739",
"aliases": [
"CVE-2020-20739"
],
"metrics": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N"
}
],
"affected": [
{
"ranges": [
{
"repo": "https://github.com/libvips/libvips",
"type": "GIT",
"events": [
{
"introduced": "0"
},
{
"fixed": "6ea76f9632edd93a716533acb78e7f6bd7089fe4"
},
{
"fixed": "2ab5aa7bf515135c2b02d42e9a72e4c98e17031a"
}
],
"database_specific": {
"extracted_events": [
{
"cpe": "cpe:2.3:a:libvips:libvips:*:*:*:*:*:*:*:*",
"range": [
{
"introduced": "0"
},
{
"fixed": "8.8.2"
}
],
"source": "CPE_RANGE"
},
{
"range": [
{
"fixed": "2ab5aa7bf515135c2b02d42e9a72e4c98e17031a"
}
],
"source": "REFERENCES_COMMIT"
}
]
}
}
],
"versions": [
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"v8.8.0-rc3",
"v8.8.0",
"v8.8.0-rc2",
"v8.8.0-rc1",
"v8.7.0",
"v8.7.0-rc3",
"v8.7.0-rc2",
"v8.7.0-rc1",
"v8.7.0-alpha2",
"v8.6.0",
"v8.6.0-beta2",
"v8.6.0-beta1",
"v8.6.0-alpha2",
"v8.6.0-alpha1",
"v8.5.3",
"v8.5.2",
"v8.5.1",
"v8.3.0",
"v8.2.2",
"v8.1",
"v8.0-beta",
"v7.28.0"
],
"database_specific": {
"source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2020-20739.json",
"vanir_signatures": [
{
"id": "CVE-2020-20739-12027fd6",
"digest": {
"length": 1463,
"function_hash": "166909256359593029980035354932831932721"
},
"source": "https://github.com/libvips/libvips/commit/2ab5aa7bf515135c2b02d42e9a72e4c98e17031a",
"target": {
"file": "libvips/deprecated/im_vips2dz.c",
"function": "im_vips2dz"
},
"deprecated": false,
"signature_type": "Function",
"signature_version": "v1"
},
{
"id": "CVE-2020-20739-45a6fd0e",
"digest": {
"length": 4038,
"function_hash": "222320631276143992629725486564266434665"
},
"source": "https://github.com/libvips/libvips/commit/6ea76f9632edd93a716533acb78e7f6bd7089fe4",
"target": {
"file": "libvips/foreign/jpeg2vips.c",
"function": "read_jpeg_header"
},
"deprecated": false,
"signature_type": "Function",
"signature_version": "v1"
},
{
"id": "CVE-2020-20739-9c4272ef",
"digest": {
"threshold": 0.9,
"line_hashes": [
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"source": "https://github.com/libvips/libvips/commit/6ea76f9632edd93a716533acb78e7f6bd7089fe4",
"target": {
"file": "libvips/foreign/jpeg2vips.c"
},
"deprecated": false,
"signature_type": "Line",
"signature_version": "v1"
},
{
"id": "CVE-2020-20739-ac65903d",
"digest": {
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"line_hashes": [
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},
"source": "https://github.com/libvips/libvips/commit/2ab5aa7bf515135c2b02d42e9a72e4c98e17031a",
"target": {
"file": "libvips/deprecated/im_vips2dz.c"
},
"deprecated": false,
"signature_type": "Line",
"signature_version": "v1"
}
],
"vanir_signatures_modified": "2026-10-20T13:52:42Z"
}
}
],
"modified": "2026-10-20T13:52:42.392650601Z",
"provider": "osv",
"references": [
"https://lists.debian.org/debian-lts-announce/2020/11/msg00049.html",
"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ZULVPQQ4QDFSQCXFYBUXEM7UXJAOKLSP/",
"https://github.com/libvips/libvips/issues/1419",
"https://github.com/libvips/libvips/commit/2ab5aa7bf515135c2b02d42e9a72e4c98e17031a"
],
"provider_metadata": {
"unresolved_ranges": [
{
"cpes": [
"cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*"
],
"vendor_product": "debian:debian_linux",
"extracted_events": [
{
"range": [
{
"introduced": "9.0"
},
{
"last_affected": "9.0"
}
],
"source": "CPE_STRING"
}
]
},
{
"cpes": [
"cpe:2.3:o:fedoraproject:fedora:32:*:*:*:*:*:*:*"
],
"vendor_product": "fedoraproject:fedora",
"extracted_events": [
{
"range": [
{
"introduced": "32"
},
{
"last_affected": "32"
},
{
"introduced": "32"
},
{
"last_affected": "32"
}
],
"source": "CPE_STRING"
}
]
}
]
}
},
"related_cves": [
{
"value": "CVE-2020-20739",
"evidence": "/id"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 388333,
"published_at": "2020-11-20T19:15:11.71+00:00"
}