CVE-2020-27842
MEDIUMCVSS 5.5/10EPSS 1.44%
Last modified
CVE-2020-27842 is a medium-severity vulnerability rated 5.5/10 on the CVSS scale. There's a flaw in openjpeg's t2 encoder in versions prior to 2.4.0. An attacker who is able to provide crafted input to be processed by openjpeg could cause a null pointer dereference. EPSS estimates a 1.44% chance of exploitation in the next 30 days.
Description
There's a flaw in openjpeg's t2 encoder in versions prior to 2.4.0. An attacker who is able to provide crafted input to be processed by openjpeg could cause a null pointer dereference. The highest impact of this flaw is to application availability.
Metrics
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Uclouvain | Openjpeg | < 2.4.0 |
| Fedoraproject | Extra Packages For Enterprise Linux | 7.0 |
| Fedoraproject | Fedora | 32 |
| Fedoraproject | Fedora | 33 |
| Debian | Debian Linux | 9.0 |
| Debian | Debian Linux | 10.0 |
| Redhat | Codeready Linux Builder | 8.0 |
| Redhat | Codeready Linux Builder For Ibm Z Systems | 8.0 |
| Redhat | Codeready Linux Builder For Power Little Endian | 8.0 |
| Redhat | Enterprise Linux | 8.0 |
| Redhat | Enterprise Linux For Ibm Z Systems | 8.0 |
| Redhat | Enterprise Linux For Power Little Endian | 8.0 |
| Oracle | Outside In Technology | 8.5.5 |
References
- https://bugzilla.redhat.com/show_bug.cgi?id=1907513Issue Tracking, Patch, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2022/04/msg00006.htmlMailing List, Third Party Advisory
- https://security.gentoo.org/glsa/202101-29Third Party Advisory
- https://www.debian.org/security/2021/dsa-4882Mailing List, Third Party Advisory
- https://www.oracle.com//security-alerts/cpujul2021.htmlPatch, Third Party Advisory
- https://www.oracle.com/security-alerts/cpuApr2021.htmlPatch, Third Party Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1907513Issue Tracking, Patch, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2022/04/msg00006.htmlMailing List, Third Party Advisory
- https://security.gentoo.org/glsa/202101-29Third Party Advisory
- https://www.debian.org/security/2021/dsa-4882Mailing List, Third Party Advisory
- https://www.oracle.com//security-alerts/cpujul2021.htmlPatch, Third Party Advisory
- https://www.oracle.com/security-alerts/cpuApr2021.htmlPatch, Third Party Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is CVE-2020-27842?
There's a flaw in openjpeg's t2 encoder in versions prior to 2.4.0. An attacker who is able to provide crafted input to be processed by openjpeg could cause a null pointer dereference. The highest impact of this flaw is to application availability.
How severe is CVE-2020-27842?
CVE-2020-27842 has a CVSS score of 5.5/10 (MEDIUM severity). The EPSS model estimates a 1.44% probability of exploitation in the next 30 days.
How do I fix CVE-2020-27842?
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-2020-27842?
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