CVE-2018-6621: debian debian_linux Out-of-bounds Read
CVSS: 6.5v3.1MediumModified
AliasesUBUNTU-CVE-2018-6621DEBIAN-CVE-2018-6621CGA-2952-4hrg-fcmxCGA-6wp8-4mxp-67mmCGA-7cj3-48x9-jvhhCGA-h825-7423-qxx8CGA-pr7r-57rf-g55vCGA-rxwq-83mh-7m7vCGA-w4v4-jq3r-qchvCGA-wwrj-4m3v-h337
Published 05-02-2018Last modified 05-08-2024
Vulnerability summary
CVE-2018-6621 is a medium (CVSS 6.5) Out-of-bounds Read vulnerability in debian debian_linux. EPSS estimates a 2.16% chance of exploitation in the next 30 days, higher than 81.9% of scored vulnerabilities.
CVSS score
6.5/10
010
Medium · v3.1 (NVD)EPSS score
2.16%
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 6 · Related 3Timeline
- 05-02-2018PublishedVulnerability first disclosed.
- 05-08-2024Last modifiedVulnerability information updated.
Description
The decode_frame function in libavcodec/utvideodec.c in FFmpeg through 3.2 allows remote attackers to cause a denial of service (out of array read) via a crafted AVI file.
CVSS metrics
6 scores · 4 sources · 3 versionsMedium 6.5Preferred score · NVD (NIST)
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:HSourcesAll 4 agree
- OSV · UbuntuEcosystem advisory · calculated6.5MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
- OSV · DebianEcosystem advisory · calculated6.5MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
- OSV · ChainguardEcosystem advisory · calculated6.5MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Medium 6.5Preferred score · OSV · Ubuntu (Ecosystem advisory) · calculated from vector
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:HSourcesSingle source
Medium 4.3Preferred score · NVD (NIST)
AV:N/AC:M/Au:N/C:N/I:N/A:PSourcesSingle source
EPSS trend
Probability
2.16%
Chance of exploitation in the next 30 days
Percentile
82%
Versus all other CVEs
30-day change
0.00 pp
From 2.16% on 18-09-2026
18-09-202618-10-2026
EPSS score2.16%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Chainguard4 products
- torchaudio-ffmpeg-tarballsAll versions (No fix recorded)
- torchaudio-ffmpeg-tarballs-4.4.4All versions (No fix recorded)
- torchaudio-ffmpeg-tarballs-5.0.3All versions (No fix recorded)
- torchaudio-ffmpeg-tarballs-6.0All versions (No fix recorded)
Debian2 products
- ffmpeg< 7:3.4.2-1
- debian_linuxEOL8.0 | 9.0
Ffmpeg1 product
- ffmpeg≤ 3.2
Ubuntu1 product
- ffmpeg< 7:3.4.2-2
4 vendors · 8 products
References
8 links- git.ffmpeg.org/gitweb/ffmpeg.git/commit/118e1b0b3370dd1c0da442901b486689efd1654bX Refsource CONFIRMPatchThird Party AdvisoryREPORTFIX
- lists.debian.org/debian-lts-announce/2019/01/msg00006.htmlMailing ListX Refsource MLISTThird Party AdvisoryAdvisory
- github.com/FFmpeg/FFmpeg/commit/22aa37c0fedf14531783189a197542a055959b6cX Refsource CONFIRMPatchThird Party AdvisoryFIX