CVE-2017-16840: debian debian_linux Out-of-bounds Read
CVSS: 9.8v3.1CriticalModified
AliasesUBUNTU-CVE-2017-16840DEBIAN-CVE-2017-16840
Published 21-11-2017Last modified 05-08-2024
Vulnerability summary
CVE-2017-16840 is a critical (CVSS 9.8) Out-of-bounds Read vulnerability in debian debian_linux. EPSS estimates a 3.33% chance of exploitation in the next 30 days, higher than 88.4% of scored vulnerabilities.
CVSS score
9.8/10
010
Critical · v3.1 (NVD)EPSS score
3.33%
0%100%
Low · 0.00 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded
Advisory lineage
Upstream 0 · Downstream 5 · Related 3Timeline
- 21-11-2017PublishedVulnerability first disclosed.
- 05-08-2024Last modifiedVulnerability information updated.
Description
The VC-2 Video Compression encoder in FFmpeg 3.0 and 3.4 allows remote attackers to cause a denial of service (out-of-bounds read) because of incorrect buffer padding for non-Haar wavelets, related to libavcodec/vc2enc.c and libavcodec/vc2enc_dwt.c.
CVSS metrics
5 scores · 3 sources · 3 versionsCritical 9.8Preferred score · NVD (NIST)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:HSourcesAll 3 agree
- OSV · UbuntuEcosystem advisory · calculated9.8CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- OSV · DebianEcosystem advisory · calculated9.8CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Critical 9.8Preferred score · OSV · Ubuntu (Ecosystem advisory) · calculated from vector
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:HSourcesSingle source
High 7.5Preferred score · NVD (NIST)
AV:N/AC:L/Au:N/C:P/I:P/A:PSourcesSingle source
EPSS trend
Probability
3.33%
Chance of exploitation in the next 30 days
Percentile
88%
Versus all other CVEs
30-day change
0.00 pp
From 3.33% on 18-09-2026
18-09-202618-10-2026
EPSS score3.33%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Debian2 products
- ffmpeg< 7:3.4.1-1
- debian_linuxEOL9.0
Ffmpeg1 product
- ffmpegEOL3.0 | 3.4
Ubuntu1 product
- ffmpeg< 7:3.4.1-1
3 vendors · 4 products
References
8 links- github.com/FFmpeg/FFmpeg/commit/94e538aebbc9f9c529e8b1f2eda860cfb8c473b1X Refsource CONFIRMPatchThird Party Advisory