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A flaw was found in the 9p passthrough filesystem (9pfs)...

High severity Unreviewed Published Jul 24, 2023 to the GitHub Advisory Database • Updated Apr 17, 2024

Package

No package listedSuggest a package

Affected versions

Unknown

Patched versions

Unknown

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

Published by the National Vulnerability Database Jul 24, 2023
Published to the GitHub Advisory Database Jul 24, 2023
Last updated Apr 17, 2024

Severity

High

EPSS score

0.042%
(5th percentile)

Weaknesses

CVE ID

CVE-2023-1386

GHSA ID

GHSA-ppj8-867g-rgjr

Source code

No known source code

Dependabot alerts are not supported on this advisory because it does not have a package from a supported ecosystem with an affected and fixed version.

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