Critical severity9.8OSV Advisory· Published Nov 17, 2018· Updated Jun 17, 2026

CVE-2018-19333

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.

AI Insight

LLM-synthesized narrative grounded in this CVE's description and references.

Affected products

Google/GvisorOSV3 versions
(expand)+ 2 more
- (no CPE)
- cpe:2.3:a:google:gvisor:*:*:*:*:*:*:*:*range: <2018-11-01
- (no CPE)range: <2018-11-01

Patches

Vulnerability mechanics

References

github.com/google/gvisor/commit/0e277a39c8b6f905e289b75e8ad0594e6b3562canvdPatchThird Party Advisory
justi.cz/security/2018/11/14/gvisor-lpe.htmlnvdExploitThird Party Advisory

News mentions

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epss	0.001
exploit	0.000
kev	0.000
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ransomware	0.000