CVE-2018-19333

Name: CVE-2018-19333
Creator: NVD / NIST
Published: 2018-11-17T17:29:00.227+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

UnknownEPSS 0.79%

Last modified Jun 17, 2026

CVE-2018-19333 is a vulnerability of currently unknown severity. pkg/sentry/kernel/shm/shm.go in Google gVisor before 2018-11-01 allows attackers to overwrite memory locations in processes running as root (but not escape the sandbox) via vectors involving IPC_RMID shmctl calls, because reference counting is mishandled.. EPSS estimates a 0.79% chance of exploitation in the next 30 days.

Description

pkg/sentry/kernel/shm/shm.go in Google gVisor before 2018-11-01 allows attackers to overwrite memory locations in processes running as root (but not escape the sandbox) via vectors involving IPC_RMID shmctl calls, because reference counting is mishandled.

Metrics

EPSS Probability

0.79%

51.4th percentile

Probability of exploitation in the next 30 days. Learn more

Affected Software

Vendor	Product	Versions
Google	Gvisor	< 2018-11-01

References

https://github.com/google/gvisor/commit/0e277a39c8b6f905e289b75e8ad0594e6b3562caPatch, Third Party Advisory
https://justi.cz/security/2018/11/14/gvisor-lpe.htmlExploit, Third Party Advisory
https://github.com/google/gvisor/commit/0e277a39c8b6f905e289b75e8ad0594e6b3562caPatch, Third Party Advisory
https://justi.cz/security/2018/11/14/gvisor-lpe.htmlExploit, Third Party Advisory

Timeline

Published: Nov 17, 2018
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2018-19333?

How severe is CVE-2018-19333?

Severity scoring for CVE-2018-19333 is pending analysis. The EPSS model estimates a 0.79% probability of exploitation in the next 30 days.

How do I fix CVE-2018-19333?

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.

Are you affected by CVE-2018-19333?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST