CVE-2018-19543: canonical ubuntu_linux Out-of-bounds Read
CVSS: 7.8v3.0HighModified
AliasesUBUNTU-CVE-2018-19543
Published 26-11-2018Last modified 15-10-2026
Vulnerability summary
CVE-2018-19543 is a high (CVSS 7.8) Out-of-bounds Read vulnerability in canonical ubuntu_linux. EPSS estimates a 1.55% chance of exploitation in the next 30 days, higher than 74.7% of scored vulnerabilities. 1 public exploit is recorded.
CVSS score
7.8/10
010
High · v3.0 (NVD)EPSS score
1.55%
0%100%
Low · 0.00 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits1github
Advisory lineage
Upstream 0 · Downstream 6 · Related 5Timeline
- 26-11-2018PublishedVulnerability first disclosed.
- 15-10-2026Last modifiedVulnerability information updated.
Description
An issue was discovered in JasPer 2.0.14. There is a heap-based buffer over-read of size 8 in the function jp2_decode in libjasper/jp2/jp2_dec.c.
CVSS metrics
3 scores · 2 sources · 2 versionsHigh 7.8Preferred score · NVD (NIST)
CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:HSourcesAll 2 agree
- OSV · UbuntuEcosystem advisory · calculated7.8HighCVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Medium 6.8Preferred score · NVD (NIST)
AV:N/AC:M/Au:N/C:P/I:P/A:PSourcesSingle source
EPSS trend
Probability
1.55%
Chance of exploitation in the next 30 days
Percentile
75%
Versus all other CVEs
30-day change
0.00 pp
From 1.55% on 18-09-2026
18-09-202618-10-2026
EPSS score1.55%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
1 foundJasper
Maturity: poc
Weaknesses
CWE · root causeAffected systems
Suse2 products
- linux_enterprise_desktop12:sp3 | 12:sp4
- linux_enterprise_server11:sp3 | 11:sp4 | 12:sp1 | 12:sp2
Canonical1 product
- ubuntu_linuxEOL14.04 | 16.04
Debian1 product
- debian_linuxEOL8.0
Jasper_project1 product
- jasper2.0.14
Ubuntu1 product
- jasperAll versions (No fix recorded)
5 vendors · 6 products
References
6 links- www.oracle.com/security-alerts/cpuapr2020.htmlX Refsource MISC