CVE-2019-19048: Canonical Ubuntu Linux

High severity, CVSS 7.5. EPSS: 3.8% chance of exploitation in the next 30 days.

A memory leak in the crypto_reportstat() function in drivers/virt/vboxguest/vboxguest_utils.c in the Linux kernel before 5.3.9 allows attackers to cause a denial of service (memory consumption) by triggering copy_form_user() failures, aka CID-e0b0cb938864.

Affected products

• Canonical Ubuntu Linux: version 18.04 only; version 19.10 only
• Linux Linux Kernel: from 4.16, before 4.19.82 (fixed in 4.19.82); from 4.20, before 5.3.9 (fixed in 5.3.9)

Published 2019-11-18. Last modified 2026-06-17.