CVE-2018-20584

Exp

JasPer 2.0.14 allows remote attackers to cause a denial of service (application hang) via an attempted conversion to the jp2 format.

Published: 2018-12-30 Last update: 2024-11-21 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2018-20584 is rated High Exploit Risk (73.3/100): CVSS Medium severity, with medium exploitation likelihood (EPSS 2.89%). 1 public exploit reference(s) are indexed (Exploit-DB). EPSS rose +2.56% over the last day, indicating growing attacker interest. Public exploits are available—assess exposure, apply mitigations, and prioritize patching.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Public exploit references (Exploit-DB) for CVE-2018-20584

EDB-ID Source Kind Published Link
— nvd_ref exploit_tag Exploit-DB ↗

Exploit prediction scoring system (EPSS) score for CVE-2018-20584

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-06-15 0.33% 2.89% +2.56%
2 2026-01-17 0.45% 0.33% -0.11%
3 2025-03-30 — 0.45% —

Full EPSS history (11 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2018-20584

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
6.5 3.1 MEDIUM
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:R)
A real person has to do something—click, install, enable—otherwise it doesn’t land.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:N)
Doesn’t really leak secrets in a meaningful way.
Integrity (I:N)
Data isn’t meaningfully altered or forged.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
 2.8 3.6 [email protected]
4.3 2.0 MEDIUM
AV:N/AC:M/Au:N/C:N/I:N/A:P Click to expand
Access vector (AV:N)
Can be exploited remotely over network reachability.
Access complexity (AC:M)
Exploitation needs some favorable conditions, but not exceptional ones.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:N)
No confidentiality impact.
Integrity impact (I:N)
No integrity impact.
Availability impact (A:P)
Partial availability impact.
 8.6 2.9 [email protected]

Weakness enumeration for CVE-2018-20584

OS Trackers for CVE-2018-20584

vendor priority summary link
gentoo normal CVE-2018-20584: 1 GLSA(s) (201908-03), 1 atom(s) (media-libs/jasper); latest impact normal. https://bugs.gentoo.org/buglist.cgi?quicksearch=CVE-2018-20584
redhat low — https://access.redhat.com/security/cve/CVE-2018-20584
suse medium CVE-2018-20584 severity moderate: SUSE including 7 source package names (jasper, libjasper, …), 49 product×package rows across 22 product lines (SLES for SAP Applications 11 SP3, SUSE Linux Enterprise Desktop 12 SP3, … (22 product lines)): Known Not Affected 49. https://www.suse.com/security/cve/CVE-2018-20584/
ubuntu negligible CVE-2018-20584 negligible priority: Ubuntu including 1 source packages (jasper), 19 status rows across 19 suites (bionic, cosmic, disco, eoan, focal, groovy, hirsute, impish, jammy, kinetic, lunar, mantic, noble, oracular, plucky, questing, trusty, upstream, xenial): DNE 17, needed 1, needs-triage 1. https://ubuntu.com/security/CVE-2018-20584

Affected software / configurations for CVE-2018-20584

Vendor Product Version Raw CPE
jasper_project jasper 2.0.14 cpe:2.3:a:jasper_project:jasper:2.0.14:*:*:*:*:*:*:*
debian debian_linux 8.0 cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*
oracle outside_in_technology 8.5.4 cpe:2.3:a:oracle:outside_in_technology:8.5.4:*:*:*:*:*:*:*

References for CVE-2018-20584

URL Tags
http://www.securityfocus.com/bid/106356 Broken Link Third Party Advisory VDB Entry
https://github.com/mdadams/jasper/issues/192 Exploit Third Party Advisory
https://lists.debian.org/debian-lts-announce/2019/01/msg00003.html Mailing List Third Party Advisory
https://security.gentoo.org/glsa/201908-03 Third Party Advisory
https://www.oracle.com/security-alerts/cpuapr2020.html Patch Third Party Advisory
cvelogic Threat Intelligence