CVE-2018-20845: Divide by Zero
First published: Wed Jun 26 2019(Updated: )
Division-by-zero vulnerabilities in the functions pi_next_pcrl, pi_next_cprl, and pi_next_rpcl in openmj2/pi.c in OpenJPEG through 2.3.0 allow remote attackers to cause a denial of service (application crash).
Credit: cve@mitre.org cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Uclouvain Openjpeg | <=2.3.0 | |
| redhat/openjpeg | <2.3.1 | 2.3.1 |
| debian/openjpeg2 | 2.4.0-3 2.5.0-2 |
Remedy
https://github.com/uclouvain/openjpeg/pull/1168/commits/c5bd64ea146162967c29bd2af0cbb845ba3eaaaf
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Reference Links
- http://www.securityfocus.com/bid/108921
- https://github.com/uclouvain/openjpeg/pull/1168/commits/c5bd64ea146162967c29bd2af0cbb845ba3eaaaf
- https://launchpad.net/bugs/cve/CVE-2018-20845
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=1728507
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=1728508
- https://github.com/uclouvain/openjpeg/commit/c5bd64ea146162967c29bd2af0cbb845ba3eaaaf
- https://access.redhat.com/errata/RHSA-2021:4251
- https://bugzilla.redhat.com/show_bug.cgi?id=1728505
- https://security-tracker.debian.org/tracker/CVE-2018-20845
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-20845
- https://nvd.nist.gov/vuln/detail/CVE-2018-20845
- https://ubuntu.com/security/CVE-2018-20845
Frequently Asked Questions
What is the vulnerability CVE-2018-20845?
CVE-2018-20845 is a division-by-zero vulnerability in the functions pi_next_pcrl, pi_next_cprl, and pi_next_rpcl in OpenJPEG through version 2.3.0.
How severe is the vulnerability CVE-2018-20845?
The severity of CVE-2018-20845 is medium with a CVSS score of 6.5.
How can the vulnerability CVE-2018-20845 be exploited?
Remote attackers can exploit CVE-2018-20845 to cause a denial of service (application crash).
What is the affected software of CVE-2018-20845?
The affected software includes OpenJPEG version up to and including 2.3.0.
How can I fix the vulnerability CVE-2018-20845?
To fix CVE-2018-20845, update OpenJPEG to version 2.3.1 or later.
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