CVE-2019-18683: Broadcom Fabric Operating System

High severity, CVSS 7.0. EPSS: 1% chance of exploitation in the next 30 days.

An issue was discovered in drivers/media/platform/vivid in the Linux kernel through 5.3.8. It is exploitable for privilege escalation on some Linux distributions where local users have /dev/video0 access, but only if the driver happens to be loaded. There are multiple race conditions during streaming stopping in this driver (part of the V4L2 subsystem). These issues are caused by wrong mutex locking in vivid_stop_generating_vid_cap(), vivid_stop_generating_vid_out(), sdr_cap_stop_streaming(), and the corresponding kthreads. At least one of these race conditions leads to a use-after-free.

Affected products

  • Broadcom Fabric Operating System: affected versions not specified
  • Canonical Ubuntu Linux: version 14.04 only; version 16.04 only; version 18.04 only; version 19.10 only
  • Debian Debian Linux: version 8.0 only
  • Linux Linux Kernel: from 3.18, before 4.4.204 (fixed in 4.4.204); from 4.5, before 4.9.204 (fixed in 4.9.204); from 4.10, before 4.14.157 (fixed in 4.14.157); from 4.15, before 4.19.87 (fixed in 4.19.87); from 4.20, before 5.3.14 (fixed in 5.3.14); from 5.4, before 5.4.1 (fixed in 5.4.1)
  • Netapp 8300 Firmware: affected versions not specified
  • Netapp 8700 Firmware: affected versions not specified
  • Netapp a400 Firmware: affected versions not specified
  • Netapp a700s Firmware: affected versions not specified
  • Netapp Active Iq Unified Manager: affected versions not specified
  • Netapp Cloud Backup: affected versions not specified
  • Netapp Data Availability Services: affected versions not specified
  • Netapp E-Series Santricity OS Controller: from 11.0.0, up to and including 11.70.1
  • Netapp Element Software: affected versions not specified
  • Netapp h610s Firmware: affected versions not specified
  • Netapp Hci Management Node: affected versions not specified
  • Netapp Solidfire: affected versions not specified
  • Netapp Steelstore Cloud Integrated Storage: affected versions not specified
  • Opensuse Leap: version 15.1 only

Published 2019-11-04. Last modified 2026-06-17.