DirectorySecurity AdvisoriesPricing
/
Sign in
Security Advisories

CVE-2023-1386

NVD

https://nvd.nist.gov/vuln/detail/CVE-2023-1386

Severity

7.8

High

CVSS V3

Eliminate CVEs with Chainguard hardened images

Build, ship, and run secure software with minimal, hardened container images — rebuilt from source daily and guarded under our industry-leading remediation SLA.

Start for free

Description

A flaw was found in the 9p passthrough filesystem (9pfs) implementation in QEMU. When a local user in the guest writes an executable file with SUID or SGID, none of these privileged bits are correctly dropped. As a result, in rare circumstances, this flaw could be used by malicious users in the guest to elevate their privileges within the guest and help a host local user to elevate privileges on the host.

References

  • https://nvd.nist.gov/vuln/detail/CVE-2023-1386
  • https://github.com/advisories/GHSA-ppj8-867g-rgjr
  • https://access.redhat.com/security/cve/CVE-2023-1386
  • https://bugzilla.redhat.com/show_bug.cgi?id=2223985
  • https://security.netapp.com/advisory/ntap-20230831-0005/
  • https://github.com/v9fs/linux/issues/29

Affected packages

The trusted source for open source

Talk to an expert
© 2025 Chainguard. All Rights Reserved.
PrivacyTerms

Product

Chainguard ContainersChainguard LibrariesChainguard VMsIntegrationsPricing

Solutions

FedRAMPPCI DSSCMMC 2.0Golden ImagesCVE RemediationPublic Sector

Customers

Customer StoriesChainguard Reviews

Resources

Events & WebinarsSupply Chain Security 101Chainguard CoursesDocumentationTrust CenterChainguard Slack Community

Company

About UsBlogPartnersNewsroomCareersLegal