CVE-2018-20099

MEDIUMNVD 6.56.5—Trending — 4 sources updated this week

6.5

There is an infinite loop in Exiv2::Jp2Image::encodeJp2Header of jp2image.cpp in Exiv2 0.27-RC3. A crafted input will lead to a remote denial of service attack.

CVSS v3: 6.5
EG Score: 6.5(medium)
EPSS: 75.5%
KEV: Not listed

Published

December 12, 2018

Last Modified

November 21, 2024

References (8)

cve@mitrehttps://access.redhat.com/errata/RHSA-2019:2101
cve@mitrehttps://github.com/Exiv2/exiv2/issues/590
cve@mitrehttps://github.com/TeamSeri0us/pocs/tree/master/exiv2/20181206
cve@mitrehttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ZXCEKTYF7HLM6VH2WCWO2HXTJH37MBLA/
af854a3a-2127-422b-91ae-364da2661108https://access.redhat.com/errata/RHSA-2019:2101
af854a3a-2127-422b-91ae-364da2661108https://github.com/Exiv2/exiv2/issues/590
af854a3a-2127-422b-91ae-364da2661108https://github.com/TeamSeri0us/pocs/tree/master/exiv2/20181206
af854a3a-2127-422b-91ae-364da2661108https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ZXCEKTYF7HLM6VH2WCWO2HXTJH37MBLA/

Patch Availability(2)

Vendor / Ecosystem	Fixed in / Patch	Released	Source
redhat	libgexiv2-0:0.10.8-4.el8	2020-04-28	redhat
redhat	exiv2-0:0.27.0-2.el7_6	2019-08-06	redhat

Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.

Affected Packages

(1 across 1 ecosystem)

PyPI(1)

Package	Vulnerable range	Fixed in	Dependents
exiv2	0.1 ... 0.17.5 (28 versions)	—	—

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

CWE-835Loop with Unreachable Exit Condition (Infinite Loop)

All Vendor Advisories

(2)

Every vendor that published an advisory referencing this CVE — pulled from our cve_vendor_advisories aggregation. Click any row for the vendor's original advisory page.

Data Freshness Timeline

(refreshed 13× in last 7d / 20× in last 30d)

Every time one of our enrichment pipelines (NVD, MITRE cvelistV5, EPSS, CISA KEV, GHSA, OSV, vendor advisories) ran against this CVE. Most recent first.

2026-06-02 20:11 UTCepss_batch
2026-06-02 20:11 UTCepss_batch
2026-06-01 13:50 UTCepss_batch
2026-06-01 13:50 UTCepss_batch
2026-05-31 22:29 UTCepss_batch
2026-05-31 00:14 UTCepss_batch
2026-05-31 00:14 UTCepss_batch
2026-05-29 13:41 UTCepss_batch
2026-05-28 13:42 UTCepss_batch
2026-05-28 13:42 UTCepss_batch
2026-05-28 00:22 UTCEG score recompute
2026-05-28 00:22 UTCVendor advisory
2026-05-28 00:22 UTCGHSA enrichment
2026-05-27 13:38 UTCepss_batch
2026-05-27 13:38 UTCepss_batch
2026-05-26 13:42 UTCepss_batch
2026-05-26 13:42 UTCepss_batch
2026-05-26 07:17 UTCepss_batch
2026-05-26 07:17 UTCepss_batch
2026-05-23 05:48 UTCOSV refresh

Frequently asked(5)

What is CVE-2018-20099?

CVE-2018-20099 is a medium vulnerability published on December 12, 2018. There is an infinite loop in Exiv2::Jp2Image::encodeJp2Header of jp2image.cpp in Exiv2 0.27-RC3. A crafted input will lead to a remote denial of service attack.

When was CVE-2018-20099 disclosed?

CVE-2018-20099 was first published in the National Vulnerability Database on December 12, 2018, with the most recent update on November 21, 2024. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.

Is CVE-2018-20099 actively exploited?

CVE-2018-20099 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 75.5% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

What is the CVSS score of CVE-2018-20099?

CVE-2018-20099 has a CVSS v3 base score of 6.5 (NVD).

How do I remediate CVE-2018-20099?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2018-20099, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

See which npm, PyPI, Go, and Maven packages are affected by CVE-2018-20099

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