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CVE-2018-20622

23
FAUCET Score

CVE-2018-20622 is a memory leak vulnerability affecting JasPer 2.0.14, specifically within the libjasper.a component when processing JP2 output. This flaw, rated Medium severity (CVSS 6.5), could lead to a denial of service due to resource exhaustion, requiring user interaction for exploitation via a network vector. There is no evidence of active exploitation, publicly available exploit code, or significant community discussion surrounding this vulnerability.

Impacted Technologies

VendorProductVersion(s)CPE
2.0.14CPE matchmatch criteria
cpe:2.3:a:jasper_project:jasper:2.0.14:*:*:*:*:*:*:*
8.0CPE matchmatch criteria
cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

6.5MEDIUM

CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
Exploitability Score
2.8
Impact Score
3.6
CvssVersion
3.0

Exploit Intelligence

EPSS Score
2.90%
Probability of exploitation in next 30 days
EPSS Percentile
85.5%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0290 is in the 93rd percentile among its peer group of 26,236 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.1 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Vendor Patches (2)

redhatend of lifevia redhat_api
Product: Red Hat Enterprise Linux 7Fixed in: jasper
redhatend of lifevia redhat_api
Product: Red Hat Enterprise Linux 8Fixed in: jasper

Vendor Advisories (1)

redhatCVE-2018-20622Low

jasper: memory leak in jpc_dec_decodepkt()

Dec 31, 2018

References

lists.opensuse.org / opensuse-security-announce/2020-09/msg00082.html
lists.opensuse.org / opensuse-security-announce/2020-09/msg00085.html
github.com / mdadams/jasper/issues/193
Third Party Advisory
lists.debian.org / debian-lts-announce/2019/01/msg00003.html
Third Party Advisory
oracle.com / security-alerts/cpuapr2020.html
securityfocus.com / bid/106373
Third Party AdvisoryVDB Entry