MEDIUM

CVE-2018-20099

CVSS v3

6.5

MEDIUM

EPSS Score

2.3 %

exploit probability, as of 2026-10-19

CISA KEV

known exploited

Exploitation

—

SSVC status

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Affected and fixed versions

Packages from OSV.dev and products from the vendors' CSAF advisories.

version not verifiedVersions not verified: read as OSV.dev and the vendors publish them, not checked against each vendor's release list.

Packages

exiv2PyPIall versions · no fixed version listed
exiv2-docAlmaLinux:8all versions · fixed in 0.27.2-5.el8and 1 other package
geglAlmaLinux:8all versions · fixed in 0.2.0-39.el8
gnome-color-managerAlmaLinux:8all versions · fixed in 3.28.0-3.el8
libgexiv2AlmaLinux:8all versions · fixed in 0.10.8-4.el8and 1 other package

Vendor advisories

CVE-2018-20099 Red Hat Product Security164 products fixed
exiv2: Infinite loop in Exiv2::Jp2Image::encodeJp2Header resulting in a denial of service
RHSA-2020:1577 Red Hat Product Security97 products fixed
Red Hat Security Advisory: exiv2 security, bug fix, and enhancement update
RHSA-2019:2101 Red Hat Product Security67 products fixed
Red Hat Security Advisory: exiv2 security, bug fix, and enhancement update

Full record on NVD

Description

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.

Technical details

Published: 2018-12-12

Frequently asked questions

What is CVE-2018-20099?

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.

Is CVE-2018-20099 actively exploited?

Active exploitation of CVE-2018-20099 has not been confirmed. Its EPSS score was 2.3% on 2026-10-19, the estimated probability of exploitation in the next 30 days.

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

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

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