CVE-2018-19128: libav Out-of-bounds Read
CVSS: 6.5v3.0MediumModified
AliasesUBUNTU-CVE-2018-19128
Published 09-11-2018Last modified 05-08-2024
Vulnerability summary
CVE-2018-19128 is a medium (CVSS 6.5) Out-of-bounds Read vulnerability in libav. EPSS estimates a 1.06% chance of exploitation in the next 30 days, higher than 63.9% of scored vulnerabilities.
CVSS score
6.5/10
010
Medium · v3.0 (NVD)EPSS score
1.06%
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 1Timeline
- 09-11-2018PublishedVulnerability first disclosed.
- 05-08-2024Last modifiedVulnerability information updated.
Description
In Libav 12.3, there is a heap-based buffer over-read in decode_frame in libavcodec/lcldec.c that allows an attacker to cause denial-of-service via a crafted avi file.
CVSS metrics
3 scores · 2 sources · 2 versionsMedium 6.5Preferred score · NVD (NIST)
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:HSourcesAll 2 agree
- OSV · UbuntuEcosystem advisory · calculated6.5MediumCVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Medium 4.3Preferred score · NVD (NIST)
AV:N/AC:M/Au:N/C:N/I:N/A:PSourcesSingle source
EPSS trend
Probability
1.06%
Chance of exploitation in the next 30 days
Percentile
64%
Versus all other CVEs
30-day change
0.00 pp
From 1.06% on 19-09-2026
19-09-202619-10-2026
EPSS score1.06%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Libav1 product
- libav12.3
Ubuntu1 product
- libavAll versions (No fix recorded)
2 vendors · 2 products
