CVE-2017-17855: Debian Linux

High severity, CVSS 7.8. EPSS: 0.4% chance of exploitation in the next 30 days.

kernel/bpf/verifier.c in the Linux kernel through 4.14.8 allows local users to cause a denial of service (memory corruption) or possibly have unspecified other impact by leveraging improper use of pointers in place of scalars.

Affected products

• Debian Debian Linux: version 9.0 only
• Linux Linux Kernel: from 4.14, before 4.14.9 (fixed in 4.14.9)

Published 2017-12-27. Last modified 2026-06-17.