CVEvulnerability
CVE-2023-1386
7.8 HIGH
Official page ↗
- Status
- Modified
- Published
- 2023-07-24
- Last modified
- 2026-06-17
- Assigner
- [email protected]
- CVSS 3.1 ([email protected])
- 3.3 LOW — CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N
- CVSS 3.1 ([email protected])
- 7.8 HIGH — CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- Weaknesses
- CWE-281
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.
Affected configurations
• qemu qemu
• fedoraproject fedora 38
Related
Weakness · CWE (1)
- CWE-281 Improper Preservation of Permissions weakness
References
- https://access.redhat.com/security/cve/CVE-2023-1386 Third Party Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=2223985 Issue Tracking, Third Party Advisory
- https://github.com/advisories/GHSA-ppj8-867g-rgjr github.com
- https://github.com/v9fs/linux/issues/29 github.com
- https://security.netapp.com/advisory/ntap-20230831-0005/ security.netapp.com
- https://access.redhat.com/security/cve/CVE-2023-1386 Third Party Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=2223985 Issue Tracking, Third Party Advisory
- https://github.com/advisories/GHSA-ppj8-867g-rgjr github.com
- https://github.com/v9fs/linux/issues/29 github.com
- https://security.netapp.com/advisory/ntap-20230831-0005/ security.netapp.com