CVE-2020-27841: Debian Linux

Medium severity, CVSS 5.5. EPSS: 1.5% chance of exploitation in the next 30 days.

There's a flaw in openjpeg in versions prior to 2.4.0 in src/lib/openjp2/pi.c. When an attacker is able to provide crafted input to be processed by the openjpeg encoder, this could cause an out-of-bounds read. The greatest impact from this flaw is to application availability.

Affected products

• Debian Debian Linux: version 9.0 only; version 10.0 only
• Fedoraproject Fedora: version 32 only
• Oracle Outside In Technology: version 8.5.5 only
• Uclouvain Openjpeg: before 2.4.0 (fixed in 2.4.0)

Published 2021-01-05. Last modified 2026-06-17.