CVE-2018-1126: Canonical Ubuntu Linux

Critical severity, CVSS 9.8. EPSS: 1.9% chance of exploitation in the next 30 days.

procps-ng before version 3.3.15 is vulnerable to an incorrect integer size in proc/alloc.* leading to truncation/integer overflow issues. This flaw is related to CVE-2018-1124.

Affected products

• Canonical Ubuntu Linux: version 14.04 only; version 16.04 only; version 17.10 only; version 18.04 only
• Debian Debian Linux: version 7.0 only; version 8.0 only; version 9.0 only
• Procps-NG Project Procps-NG: before 3.3.15 (fixed in 3.3.15)
• Red Hat Enterprise Linux: version 7.0 only
• Red Hat Enterprise Linux Desktop: version 7.0 only
• Red Hat Enterprise Linux Server: version 7.0 only; version 7.5 only
• Red Hat Enterprise Linux Server Aus: version 6.6 only
• Red Hat Enterprise Linux Server Tus: version 6.6 only
• Red Hat Enterprise Linux Workstation: version 7.0 only
• Schneider Electric Struxureware Data Center Expert: before 7.6.0 (fixed in 7.6.0)

Published 2018-05-23. Last modified 2026-06-17.