CVE-2020-12284: canonical ubuntu_linux Out-of-bounds Write
CVSS: 10.0v2.0HighModified
AliasesUBUNTU-CVE-2020-12284DEBIAN-CVE-2020-12284
Published 28-04-2020Last modified 04-08-2024
Vulnerability summary
CVE-2020-12284 is a high (CVSS 10.0) Out-of-bounds Write vulnerability in canonical ubuntu_linux. EPSS estimates a 3.85% chance of exploitation in the next 30 days, higher than 90% of scored vulnerabilities. 1 public exploit is recorded.
CVSS score
10.0/10
010
High · v2.0 (NVD)EPSS score
3.85%
0%100%
Low · 0.00 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits1reference
Advisory lineage
Upstream 0 · Downstream 3 · Related 1Timeline
- 28-04-2020PublishedVulnerability first disclosed.
- 04-08-2024Last modifiedVulnerability information updated.
Description
cbs_jpeg_split_fragment in libavcodec/cbs_jpeg.c in FFmpeg 4.1 and 4.2.2 has a heap-based buffer overflow during JPEG_MARKER_SOS handling because of a missing length check.
CVSS metrics
4 scores · 3 sources · 2 versionsCritical 9.8Preferred score · OSV · Ubuntu (Ecosystem advisory) · calculated from vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:HSourcesAll 3 agree
- OSV · DebianEcosystem advisory · calculated9.8CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- NVDNIST9.8CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
High 10.0Preferred score · NVD (NIST)
AV:N/AC:L/Au:N/C:C/I:C/A:CSourcesSingle source
EPSS trend
Probability
3.85%
Chance of exploitation in the next 30 days
Percentile
90%
Versus all other CVEs
30-day change
0.00 pp
From 3.85% on 19-09-2026
19-09-202619-10-2026
EPSS score3.85%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
1 foundExploit Reference (bugs.chromium.org)
Maturity: unknown
Weaknesses
CWE · root causeAffected systems
Debian2 products
- ffmpeg< 7:4.2.3-1
- debian_linuxEOL10.0
Canonical1 product
- ubuntu_linuxEOL16.04 | 18.04 | 20.04
Ffmpeg1 product
- ffmpegEOL4.1 | 4.2.2
Ubuntu1 product
- ffmpeg< 7:4.2.4-1ubuntu0.1
4 vendors · 5 products
References
10 links- github.com/FFmpeg/FFmpeg/commit/1812352d767ccf5431aa440123e2e260a4db2726X Refsource MISCREPORTPatchThird Party Advisory
- bugs.chromium.org/p/oss-fuzz/issues/detail?id=19734X Refsource MISCREPORTExploitIssue TrackingVendor Advisory
- github.com/FFmpeg/FFmpeg/commit/a3a3730b5456ca00587455004d40c047f7b20a99X Refsource MISCPatchThird Party Advisory