High
Security advisory
An issue was discovered in libexif before 0.6.22. An unrestricted size in handling Canon EXIF MakerNote data could lead to consumption of large amounts of compute time for decoding EXIF data.
- Products
- Not specified
- Affected versions
- Not specified
- Fixed versions
- Not specified
- CVEs
- CVE-2020-13114
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 1 Nov 2026, 09:03 UTC · Revision 1
Source evidence
An issue was discovered in libexif before 0.6.22. An unrestricted size in handling Canon EXIF MakerNote data could lead to consumption of large amounts of compute time for decoding EXIF data.
osv:CVE-2020-13114
Complete source record
{
"id": "3db59edf86ed61d15b8f60d8a9731a645461aabf1b9e861d99d0bd1f65d9a3e3",
"url": "https://osv.dev/vulnerability/CVE-2020-13114",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "CVE-2020-13114",
"summary": "An issue was discovered in libexif before 0.6.22. An unrestricted size in handling Canon EXIF MakerNote data could lead to consumption of large amounts of compute time for decoding EXIF data.",
"evidence": "osv:CVE-2020-13114",
"products": [],
"severity": "high",
"structured": {
"id": "CVE-2020-13114",
"aliases": [
"CVE-2020-13114"
],
"metrics": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"
}
],
"affected": [
{
"ranges": [
{
"repo": "https://github.com/libexif/exif",
"type": "GIT",
"events": [
{
"introduced": "0"
},
{
"fixed": "edad134a28caaa7ea324b8c075bde52da05ad7d9"
}
],
"database_specific": {
"extracted_events": [
{
"cpe": "cpe:2.3:a:libexif_project:libexif:*:*:*:*:*:*:*:*",
"range": [
{
"introduced": "0"
},
{
"fixed": "0.6.22"
}
],
"source": "CPE_RANGE"
}
]
}
}
],
"versions": [
"cvs-migration",
"exif-0_6_21-release",
"exif-0_6_20-release",
"exif-0_6_19-release",
"exif-0_6_18-release",
"exif-0_6_17-release",
"exif-0_6_15-release",
"exif-0_6_9-release",
"exif-0_6-release"
],
"database_specific": {
"source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2020-13114.json"
}
},
{
"ranges": [
{
"repo": "https://github.com/libexif/libexif",
"type": "GIT",
"events": [
{
"introduced": "0"
},
{
"fixed": "3cc7842ca200a4da4bd65850e3c20d5a1811afa7"
},
{
"fixed": "e6a38a1a23ba94d139b1fa2cd4519fdcfe3c9bab"
}
],
"database_specific": {
"extracted_events": [
{
"cpe": "cpe:2.3:a:libexif_project:libexif:*:*:*:*:*:*:*:*",
"range": [
{
"introduced": "0"
},
{
"fixed": "0.6.22"
}
],
"source": "CPE_RANGE"
},
{
"range": [
{
"fixed": "e6a38a1a23ba94d139b1fa2cd4519fdcfe3c9bab"
}
],
"source": "REFERENCES_COMMIT"
}
]
}
}
],
"versions": [
"cvs-migration",
"libexif-0_6_21-release",
"libexif-0_6_20-release",
"libexif-0_6_19-release",
"libexif-0_6_18-release",
"libexif-0_6_17-release",
"libexif-0_6_16-release",
"libexif-0_6_15-release",
"libexif-0_6_14-release",
"libexif-0_6_12-release",
"libexif-before-0_6_0-api-change",
"libexif-0_5_9-release",
"libexif-0_5_7-release",
"libexif-0_5_7-rc4",
"libexif-0_5_7-rc3",
"libexif-0_5_7-rc2"
],
"database_specific": {
"source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2020-13114.json",
"vanir_signatures": [
{
"id": "CVE-2020-13114-2913e4b7",
"digest": {
"threshold": 0.9,
"line_hashes": [
"183661055639346139562865211106879471593",
"102180397425500091626994875092804653997",
"306305871760784389225367867808059433294",
"207782849275302793484543269879757525988",
"299962798900018550672650127921689935553",
"137645713422839848331569839100485136820",
"65281336464964645892986813792569762885",
"136226467884528459531799921885828871006",
"211654736396785424026722509724167862913",
"164442592703984623745953044333516937576"
]
},
"source": "https://github.com/libexif/libexif/commit/e6a38a1a23ba94d139b1fa2cd4519fdcfe3c9bab",
"target": {
"file": "libexif/canon/exif-mnote-data-canon.c"
},
"deprecated": false,
"signature_type": "Line",
"signature_version": "v1"
},
{
"id": "CVE-2020-13114-2b6322a1",
"digest": {
"length": 2731,
"function_hash": "275829830554807676188843136336972106671"
},
"source": "https://github.com/libexif/libexif/commit/e6a38a1a23ba94d139b1fa2cd4519fdcfe3c9bab",
"target": {
"file": "libexif/canon/exif-mnote-data-canon.c",
"function": "exif_mnote_data_canon_load"
},
"deprecated": false,
"signature_type": "Function",
"signature_version": "v1"
}
],
"vanir_signatures_modified": "2026-10-24T14:05:21Z"
}
}
],
"modified": "2026-10-24T14:05:21.226126416Z",
"provider": "osv",
"references": [
"https://lists.debian.org/debian-lts-announce/2020/05/msg00025.html",
"https://security.gentoo.org/glsa/202007-05",
"https://usn.ubuntu.com/4396-1/",
"https://github.com/libexif/libexif/commit/e6a38a1a23ba94d139b1fa2cd4519fdcfe3c9bab"
],
"provider_metadata": {
"unresolved_ranges": [
{
"cpes": [
"cpe:2.3:o:canonical:ubuntu_linux:12.04:*:*:*:-:*:*:*",
"cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:esm:*:*:*",
"cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:esm:*:*:*",
"cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:*",
"cpe:2.3:o:canonical:ubuntu_linux:19.10:*:*:*:*:*:*:*",
"cpe:2.3:o:canonical:ubuntu_linux:20.04:*:*:*:lts:*:*:*"
],
"vendor_product": "canonical:ubuntu_linux",
"extracted_events": [
{
"range": [
{
"introduced": "12.04"
},
{
"last_affected": "12.04"
},
{
"introduced": "14.04"
},
{
"last_affected": "14.04"
},
{
"introduced": "16.04"
},
{
"last_affected": "16.04"
},
{
"introduced": "18.04"
},
{
"last_affected": "18.04"
},
{
"introduced": "19.10"
},
{
"last_affected": "19.10"
},
{
"introduced": "20.04"
},
{
"last_affected": "20.04"
}
],
"source": "CPE_STRING"
}
]
},
{
"cpes": [
"cpe:2.3:o:opensuse:leap:15.1:*:*:*:*:*:*:*"
],
"vendor_product": "opensuse:leap",
"extracted_events": [
{
"range": [
{
"introduced": "15.1"
},
{
"last_affected": "15.1"
}
],
"source": "CPE_STRING"
}
]
}
]
}
},
"related_cves": [
{
"value": "CVE-2020-13114",
"evidence": "/id"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 442936,
"published_at": "2020-05-21T16:15:10.93+00:00"
}