CVE-2018-19542: canonical ubuntu_linux NULL Pointer Dereference
CVSS: 6.5v3.0MediumModified
AliasesUBUNTU-CVE-2018-19542
Published 26-11-2018Last modified 15-10-2026
Vulnerability summary
CVE-2018-19542 is a medium (CVSS 6.5) NULL Pointer Dereference vulnerability in canonical ubuntu_linux. EPSS estimates a 1.95% chance of exploitation in the next 30 days, higher than 79.8% of scored vulnerabilities. 1 public exploit is recorded.
CVSS score
6.5/10
010
Medium · v3.0 (NVD)EPSS score
1.95%
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 7 · 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 NULL pointer dereference in the function jp2_decode in libjasper/jp2/jp2_dec.c, leading to a denial of service.
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
1.95%
Chance of exploitation in the next 30 days
Percentile
80%
Versus all other CVEs
30-day change
0.00 pp
From 1.95% on 18-09-2026
18-09-202618-10-2026
EPSS score1.95%
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_linuxEOL16.04
Debian1 product
- debian_linuxEOL8.0
Jasper_project1 product
- jasper2.0.14
Opensuse1 product
- leapEOL15.0
Ubuntu1 product
- jasper< 1.900.1-debian1-2.4ubuntu1.3
6 vendors · 7 products
References
7 links- lists.debian.org/debian-lts-announce/2019/01/msg00003.htmlMailing ListX Refsource MLISTThird Party Advisory
- lists.opensuse.org/opensuse-security-announce/2019-05/msg00004.htmlVendor AdvisoryX Refsource SUSEMailing ListThird Party Advisory
- www.oracle.com/security-alerts/cpuapr2020.htmlX Refsource MISC