Description (CNA)
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 (CNA)
| Vendor / product | Versions |
|---|---|
| n/a / qemu | affected |
| Red Hat / Red Hat Enterprise Linux 6 | unaffected |
| Red Hat / Red Hat Enterprise Linux 7 | unaffected |
| Red Hat / Red Hat Enterprise Linux 7 | unaffected |
| Red Hat / Red Hat Enterprise Linux 8 | unaffected |
| Red Hat / Red Hat Enterprise Linux 8 Advanced Virtualization | unaffected |
| Red Hat / Red Hat Enterprise Linux 9 | unaffected |
| Fedora / Fedora | affected |
| Fedora / Extra Packages for Enterprise Linux | unaffected |
CWE
CWE-281
References
- https://access.redhat.com/security/cve/CVE-2023-1386
- https://bugzilla.redhat.com/show_bug.cgi?id=2223985
- https://github.com/advisories/GHSA-ppj8-867g-rgjr
- https://github.com/v9fs/linux/issues/29
- https://security.netapp.com/advisory/ntap-20230831-0005/
ADP enrichment
No English description supplied.
No English description supplied.
No references supplied.