CVE-2018-5785: Canonical Ubuntu Linux

Medium severity, CVSS 6.5. EPSS: 2.3% chance of exploitation in the next 30 days.

In OpenJPEG 2.3.0, there is an integer overflow caused by an out-of-bounds left shift in the opj_j2k_setup_encoder function (openjp2/j2k.c). Remote attackers could leverage this vulnerability to cause a denial of service via a crafted bmp file.

Affected products

• Canonical Ubuntu Linux: version 18.04 only
• Debian Debian Linux: version 9.0 only
• Uclouvain Openjpeg: version 2.3.0 only

Published 2018-01-19. Last modified 2026-06-17.