CVE-2019-20421

Public Exploit

Description

In Jp2Image::readMetadata() in jp2image.cpp in Exiv2 0.27.2, an input file can result in an infinite loop and hang, with high CPU consumption. Remote attackers could leverage this vulnerability to cause a denial of service via a crafted file.

Category

7.5
CVSS
Severity: High
CVSS 3.1 •
CVSS 2.0 •
EPSS 2.00% Top 20%
Vendor Advisory ubuntu.com Vendor Advisory debian.org
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
https://github.com/Exiv2/exiv2/issues/1011 patch third party advisory exploit
https://github.com/Exiv2/exiv2/commit/a82098f4f90cd86297131b5663c3dec6a34470e8 third party advisory patch
https://usn.ubuntu.com/4270-1/ third party advisory vendor advisory
https://www.debian.org/security/2021/dsa-4958 third party advisory vendor advisory
https://lists.debian.org/debian-lts-announce/2021/08/msg00028.html third party advisory mailing list

Frequently Asked Questions

What is the severity of CVE-2019-20421?
CVE-2019-20421 has been scored as a high severity vulnerability.
How to fix CVE-2019-20421?
To fix CVE-2019-20421, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2019-20421 being actively exploited in the wild?
It is possible that CVE-2019-20421 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~2% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
This platform uses data from the NIST NVD, MITRE CVE, MITRE CWE, First.org and CISA KEV but is not endorsed or certified by these entities. CVE is a registred trademark of the MITRE Corporation and the authoritative source of CVE content is MITRE's CVE web site. CWE is a registred trademark of the MITRE Corporation and the authoritative source of CWE content is MITRE's CWE web site.
© 2025 Under My Watch. All Rights Reserved.