CVE-2020-12284
- Source
- https://cve.org/CVERecord?id=CVE-2020-12284
- Import Source
- https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2020-12284.json
- JSON Data
- https://api.osv.dev/v1/vulns/CVE-2020-12284
- Downstream
- Published
- 2020-04-28T06:15:10.777Z
- Modified
- 2026-04-16T04:40:49.266218866Z
- 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
-
cbsjpegsplitfragment in libavcodec/cbsjpeg.c in FFmpeg 4.1 and 4.2.2 has a heap-based buffer overflow during JPEGMARKERSOS handling because of a missing length check.
- References
-
- https://security.gentoo.org/glsa/202007-58
- https://usn.ubuntu.com/4431-1/
- https://www.debian.org/security/2020/dsa-4722
- https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=19734
- https://github.com/FFmpeg/FFmpeg/commit/1812352d767ccf5431aa440123e2e260a4db2726
- https://github.com/FFmpeg/FFmpeg/commit/a3a3730b5456ca00587455004d40c047f7b20a99
Affected packages
Git / github.com/ffmpeg/ffmpeg
Affected ranges
- Type
- GIT
- Repo
- https://github.com/ffmpeg/ffmpeg
- Events
-
Introduced0 Unknown introduced commit / All previous commits are affectedLast affectedIntroduced0 Unknown introduced commit / All previous commits are affectedLast affectedFixedFixed
- Database specific
{ "versions": [ { "introduced": "0" }, { "last_affected": "4.1" }, { "introduced": "0" }, { "last_affected": "4.2.2" } ] }
Affected versions
Other
N
n0.*
n0.11-dev
n0.12-dev
n0.8
n1.*
n1.1-dev
n1.2-dev
n1.3-dev
n2.*
n2.0
n2.1-dev
n2.2-dev
n2.3-dev
n2.4-dev
n2.5-dev
n2.6-dev
n2.7-dev
n2.8-dev
n2.9-dev
n3.*
n3.1-dev
n3.2-dev
n3.3-dev
n3.4-dev
n3.5-dev
n4.*
n4.1
n4.1-dev
n4.1.1
n4.1.2
n4.1.3
n4.1.4
n4.1.5
n4.2
n4.2-dev
n4.2.1
n4.2.2
n4.3-dev
Database specific
source
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2020-12284.json"
vanir_signatures
[
{
"source": "https://github.com/ffmpeg/ffmpeg/commit/1812352d767ccf5431aa440123e2e260a4db2726",
"target": {
"function": "cbs_jpeg_split_fragment",
"file": "libavcodec/cbs_jpeg.c"
},
"signature_version": "v1",
"deprecated": false,
"signature_type": "Function",
"digest": {
"length": 3246.0,
"function_hash": "295269910854795076654787475383993439121"
},
"id": "CVE-2020-12284-05b42b91"
},
{
"digest": {
"threshold": 0.9,
"line_hashes": [
"95195660024913394212304132289173808057",
"312525091208015857353260134168748076611",
"298190530965200286121570828407286037464"
]
},
"id": "CVE-2020-12284-4194c84e",
"deprecated": false,
"signature_version": "v1",
"signature_type": "Line",
"source": "https://github.com/ffmpeg/ffmpeg/commit/1812352d767ccf5431aa440123e2e260a4db2726",
"target": {
"file": "libavcodec/cbs_jpeg.c"
}
},
{
"digest": {
"threshold": 0.9,
"line_hashes": [
"95195660024913394212304132289173808057",
"312525091208015857353260134168748076611",
"298190530965200286121570828407286037464"
]
},
"id": "CVE-2020-12284-8f9639c6",
"signature_version": "v1",
"source": "https://github.com/ffmpeg/ffmpeg/commit/a3a3730b5456ca00587455004d40c047f7b20a99",
"signature_type": "Line",
"target": {
"file": "libavcodec/cbs_jpeg.c"
},
"deprecated": false
},
{
"digest": {
"length": 3284.0,
"function_hash": "95840289875798690280122319277904648598"
},
"target": {
"function": "cbs_jpeg_split_fragment",
"file": "libavcodec/cbs_jpeg.c"
},
"deprecated": false,
"id": "CVE-2020-12284-e760d172",
"signature_type": "Function",
"signature_version": "v1",
"source": "https://github.com/ffmpeg/ffmpeg/commit/a3a3730b5456ca00587455004d40c047f7b20a99"
}
]
vanir_signatures_modified
"2026-04-11T15:27:50Z"
unresolved_ranges
[
{
"events": [
{
"introduced": "0"
},
{
"last_affected": "16.04"
}
]
},
{
"events": [
{
"introduced": "0"
},
{
"last_affected": "18.04"
}
]
},
{
"events": [
{
"introduced": "0"
},
{
"last_affected": "20.04"
}
]
},
{
"events": [
{
"introduced": "0"
},
{
"last_affected": "10.0"
}
]
}
]