CVE-2020-27843: Medium severity uclouvain openjpeg vulnerability
A flaw was found in OpenJPEG in versions prior to 2.4.0. This flaw allows an attacker to provide specially crafted input to the conversion or encoding functionality, causing an out-of-bounds read. The highest threat from this vulnerability is system availability.
Other sources
A flaw was found in OpenJPEG. Specially crafted input file can lead to an out-of-bounds read in opjt2encodepacket function in openjp2/t2.c.
Reference: https://github.com/uclouvain/openjpeg/issues/1297
— Red Hat
Affected Software
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Upgrade
Upgrade
redhat/openjpegto a version that resolves this vulnerability.Fixed in 2.4.0 - Upgrade
Upgrade
debian/openjpeg2to a version that resolves this vulnerability.Fixed in 2.4.0-3Fixed in 2.4.0-3+deb11u1Fixed in 2.5.0-2+deb12u1Fixed in 2.5.3-2 - Upgrade
Upgrade
OpenJPEGto a version that resolves this vulnerability.Fixed in 2.4.0
Event History
Frequently Asked Questions
What is CVE-2020-27843?
CVE-2020-27843 is a vulnerability found in OpenJPEG that allows an attacker to cause an out-of-bounds read.
How severe is CVE-2020-27843?
CVE-2020-27843 has a severity rating of high.
Which versions of OpenJPEG are affected by CVE-2020-27843?
Versions of OpenJPEG prior to 2.4.0 are affected by CVE-2020-27843.
How can I fix CVE-2020-27843?
To fix CVE-2020-27843, update OpenJPEG to version 2.4.0 or later.
Where can I find more information about CVE-2020-27843?
You can find more information about CVE-2020-27843 on the following links: [link1](https://bugzilla.redhat.com/show_bug.cgi?id=1907516), [link2](https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/WJUPGIZE6A4O52EBOF75MCXJOL6MUCRV/), [link3](https://security.gentoo.org/glsa/202101-29).