CVE-2018-6616: Canonical Ubuntu Linux

Medium severity, CVSS 5.5. EPSS: 1.7% chance of exploitation in the next 30 days.

In OpenJPEG 2.3.0, there is excessive iteration in the opj_t1_encode_cblks function of openjp2/t1.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 8.0 only; version 9.0 only
• Oracle Georaster: version 18c only
• Uclouvain Openjpeg: version 2.3.0 only

Published 2018-02-04. Last modified 2026-06-17.