CVE-2019-20421
HIGHCVSS 7.5/10EPSS 4.30%
Last modified
CVE-2019-20421 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. 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.. EPSS estimates a 4.30% chance of exploitation in the next 30 days.
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.
Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Exiv2 | Exiv2 | 0.27.2 |
| Canonical | Ubuntu Linux | 16.04 |
| Canonical | Ubuntu Linux | 18.04 |
| Canonical | Ubuntu Linux | 19.10 |
| Debian | Debian Linux | 9.0 |
| Debian | Debian Linux | 10.0 |
References
- https://github.com/Exiv2/exiv2/commit/a82098f4f90cd86297131b5663c3dec6a34470e8Patch, Third Party Advisory
- https://github.com/Exiv2/exiv2/issues/1011Exploit, Patch, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2021/08/msg00028.htmlMailing List, Third Party Advisory
- https://usn.ubuntu.com/4270-1/Third Party Advisory
- https://www.debian.org/security/2021/dsa-4958Third Party Advisory
- https://github.com/Exiv2/exiv2/commit/a82098f4f90cd86297131b5663c3dec6a34470e8Patch, Third Party Advisory
- https://github.com/Exiv2/exiv2/issues/1011Exploit, Patch, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2021/08/msg00028.htmlMailing List, Third Party Advisory
- https://usn.ubuntu.com/4270-1/Third Party Advisory
- https://www.debian.org/security/2021/dsa-4958Third Party Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is CVE-2019-20421?
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.
How severe is CVE-2019-20421?
CVE-2019-20421 has a CVSS score of 7.5/10 (HIGH severity). The EPSS model estimates a 4.30% probability of exploitation in the next 30 days.
How do I fix CVE-2019-20421?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.
How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
- Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
- PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
- AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.
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Are you affected by CVE-2019-20421?
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Scan your code nowSource: NVD / NIST