CVE-2020-24394: Canonical Ubuntu Linux

High severity, CVSS 7.1. EPSS: 0.4% chance of exploitation in the next 30 days.

In the Linux kernel before 5.7.8, fs/nfsd/vfs.c (in the NFS server) can set incorrect permissions on new filesystem objects when the filesystem lacks ACL support, aka CID-22cf8419f131. This occurs because the current umask is not considered.

Affected products

• Canonical Ubuntu Linux: version 14.04 only; version 16.04 only; version 18.04 only; version 20.04 only
• Linux Linux Kernel: before 5.7.8 (fixed in 5.7.8)
• Opensuse Leap: version 15.1 only
• Oracle SD-WAN Edge: version 8.2 only
• Starwindsoftware Starwind Virtual San: version v8 only

Published 2020-08-19. Last modified 2026-06-17.