Vulnerabilities > CVE-2023-1386 - Improper Preservation of Permissions vulnerability in multiple products
Attack vector
LOCAL Attack complexity
LOW Privileges required
LOW Confidentiality impact
HIGH Integrity impact
HIGH Availability impact
HIGH Summary
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.
Vulnerable Configurations
| Part | Description | Count |
|---|---|---|
| Application | 1 | |
| OS | 1 |
Common Weakness Enumeration (CWE)
References
- https://access.redhat.com/security/cve/CVE-2023-1386
- https://access.redhat.com/security/cve/CVE-2023-1386
- https://bugzilla.redhat.com/show_bug.cgi?id=2223985
- https://bugzilla.redhat.com/show_bug.cgi?id=2223985
- https://github.com/advisories/GHSA-ppj8-867g-rgjr
- https://github.com/advisories/GHSA-ppj8-867g-rgjr
- https://github.com/v9fs/linux/issues/29
- https://github.com/v9fs/linux/issues/29
- https://security.netapp.com/advisory/ntap-20230831-0005/
- https://security.netapp.com/advisory/ntap-20230831-0005/