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CVE-2019-18683

HIGHCVSS 7/10EPSS 0.98%

Last modified

CVE-2019-18683 is a high-severity vulnerability rated 7/10 on the CVSS scale. 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. EPSS estimates a 0.98% chance of exploitation in the next 30 days.

Description

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.

Metrics

CVSS 3.1
7/10

CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

EPSS Probability
0.98%

57.9th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

VendorProductVersions
LinuxLinux Kernel>= 3.18, < 4.4.204
LinuxLinux Kernel>= 4.5, < 4.9.204
LinuxLinux Kernel>= 4.10, < 4.14.157
LinuxLinux Kernel>= 4.15, < 4.19.87
LinuxLinux Kernel>= 4.20, < 5.3.14
LinuxLinux Kernel>= 5.4, < 5.4.1
CanonicalUbuntu Linux14.04
CanonicalUbuntu Linux16.04
CanonicalUbuntu Linux18.04
CanonicalUbuntu Linux19.10
OpensuseLeap15.1
NetappActive Iq Unified ManagerAll versions
NetappCloud BackupAll versions
NetappData Availability ServicesAll versions
NetappE-Series Santricity Os Controller>= 11.0.0, <= 11.70.1
NetappElement SoftwareAll versions
NetappHci Management NodeAll versions
NetappSolidfireAll versions
NetappSteelstore Cloud Integrated StorageAll versions
BroadcomFabric Operating SystemAll versions
NetappA700s FirmwareAll versions
Netapp8300 FirmwareAll versions
Netapp8700 FirmwareAll versions
NetappA400 FirmwareAll versions
NetappH610s FirmwareAll versions
DebianDebian Linux8.0

References

Timeline

Published
Last Modified
Status
Modified

Frequently Asked Questions

What is CVE-2019-18683?
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.
How severe is CVE-2019-18683?
CVE-2019-18683 has a CVSS score of 7/10 (HIGH severity). The EPSS model estimates a 0.98% probability of exploitation in the next 30 days.
How do I fix CVE-2019-18683?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

How Strix Helps

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Source: NVD / NIST