CVE-2018-19139: An issue has been found in JasPer 2.0.14

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MEDIUM 5.5WATCHLISTDOWNGRADEMITIGATEMITIGATE

CVE-2018-19139 is a medium-severity flaw (CVSS 5.5) affecting jasper, fedora, debian linux. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

An issue has been found in JasPer 2.0.14. There is a memory leak in jas_malloc.c when called from jpc_unk_getparms in jpc_cs.c.

Why this priority

Public exploit reference
On your watchlist

No fix is published yet: follow the downgrade or mitigation steps.

Risk facts

CVSS score	5.5 (Medium)
Attack vector	Local
Attack complexity	Low
Privileges needed	None
User interaction	Required
EPSS exploit chance	1.7% (top 23%)
CISA exploited list	No
Weakness	CWE-772
Published	2018-11-09
Last modified	2026-10-15

Publisher (CNA): MITRE · Vendor: debian · jasper project · redhat

Last updated 2026-10-15 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2018-11-09 21:29 UTCPublished CVE record published
2026-10-15 18:17 UTCUpdated Record last modified

jasper project jasper DOWNGRADE

Affected: 2.0.14

Fixed in: no fixed release known

Safe to downgrade to: a release before 2.0.14

1. Check installed version

apt-cache policy jasper || rpm -q jasper || jasper --version

2. No fixed release: DOWNGRADE to a release before 2.0.14 (Debian / Ubuntu)

apt-cache madison jasper sudo apt install jasper=<VERSION_BEFORE_2.0.14> sudo apt-mark hold jasper

2. No fixed release: DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list jasper sudo dnf downgrade jasper-<VERSION_BEFORE_2.0.14> sudo dnf versionlock add jasper

Downgrade risk

Downgrading can break dependent software and may reopen older bugs. Read the distro advisory first and test on a non-production host.

After downgrade

Restart the service, and keep the package held until a fixed release ships.

redhat fedora MITIGATE

Affected: all versions

Fixed in: no fixed release known

Safe to downgrade to: no unaffected older release

Check your OS release

cat /etc/os-release; uname -r

Debian / Ubuntu

sudo apt update && sudo apt full-upgrade

RHEL / Amazon Linux / Fedora

sudo dnf upgrade --refresh

Windows

Install the latest cumulative update from Windows Update

If no patch exists yet

OS downgrades are not safe. Apply the vendor mitigation from the advisory and restrict exposure.

debian debian linux MITIGATE

Affected: 8.0

Fixed in: no fixed release known

Safe to downgrade to: a release before 8.0

Check your OS release

cat /etc/os-release; uname -r

Debian / Ubuntu

sudo apt update && sudo apt full-upgrade

RHEL / Amazon Linux / Fedora

sudo dnf upgrade --refresh

Windows

Install the latest cumulative update from Windows Update

If no patch exists yet

OS downgrades are not safe. Apply the vendor mitigation from the advisory and restrict exposure.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2018-19139?

jasper: downgrade or apply the listed mitigation; fedora: mitigate or apply the listed mitigation; debian linux: mitigate or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2018-19139 being exploited?

CVE-2018-19139 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2018-19139 affect?

CVE-2018-19139 affects jasper, fedora, debian linux. Severity is medium (CVSS 5.5). An issue has been found in JasPer 2.0.14. There is a memory leak in jas_malloc.c when called from jpc_unk_getparms in jpc_cs.c.

How urgent is CVE-2018-19139?

Priority 48/100. Public exploit reference; On your watchlist

Software pages

Debian vulnerabilities

Related CVEs

CVE-2018-19543 HIGH 7.8 DOWNGRADE MITIGATE An issue was discovered in JasPer 2.0.14
CVE-2018-19542 MEDIUM 6.5 DOWNGRADE MITIGATE An issue was discovered in JasPer 2.0.14
CVE-2018-19541 HIGH 8.8 DOWNGRADE MITIGATE An issue was discovered in JasPer 1.900.8, 1.900.9, 1.900.10, 1.900.11, 1.900.12, 1.900.13, 1.900.14, 1.900.15
CVE-2018-19540 HIGH 8.8 DOWNGRADE MITIGATE An issue was discovered in JasPer 1.900.8, 1.900.9, 1.900.10, 1.900.11, 1.900.12, 1.900.13, 1.900.14, 1.900.15
CVE-2018-19539 MEDIUM 6.5 DOWNGRADE MITIGATE An issue was discovered in JasPer 2.0.14

References

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