CVE-2023-3494
Summary
| CVE | CVE-2023-3494 |
|---|---|
| State | PUBLIC |
| Assigner | [email protected] |
| Source Priority | CVE Program / NVD first with legacy fallback |
| Published | 2023-08-01 23:15:00 UTC |
| Updated | 2023-08-31 19:15:00 UTC |
| Description | The fwctl driver implements a state machine which is executed when a bhyve guest accesses certain x86 I/O ports. The interface lets the guest copy a string into a buffer resident in the bhyve process' memory. A bug in the state machine implementation can result in a buffer overflowing when copying this string. Malicious, privileged software running in a guest VM can exploit the buffer overflow to achieve code execution on the host in the bhyve userspace process, which typically runs as root, mitigated by the capabilities assigned through the Capsicum sandbox available to the bhyve process. |
Risk And Classification
Problem Types: CWE-120
NVD Known Affected Configurations (CPE 2.3)
| Type | Vendor | Product | Version | Update | Edition | Language |
|---|---|---|---|---|---|---|
| Operating System | Freebsd | Freebsd | 13.1 | - | All | All |
| Operating System | Freebsd | Freebsd | 13.1 | b1-p1 | All | All |
| Operating System | Freebsd | Freebsd | 13.1 | b2-p2 | All | All |
| Operating System | Freebsd | Freebsd | 13.1 | p1 | All | All |
| Operating System | Freebsd | Freebsd | 13.1 | p2 | All | All |
| Operating System | Freebsd | Freebsd | 13.1 | p3 | All | All |
| Operating System | Freebsd | Freebsd | 13.1 | p4 | All | All |
| Operating System | Freebsd | Freebsd | 13.1 | p5 | All | All |
| Operating System | Freebsd | Freebsd | 13.1 | p6 | All | All |
| Operating System | Freebsd | Freebsd | 13.1 | p7 | All | All |
| Operating System | Freebsd | Freebsd | 13.1 | p8 | All | All |
| Operating System | Freebsd | Freebsd | 13.1 | rc1-p1 | All | All |
| Operating System | Freebsd | Freebsd | 13.2 | - | All | All |
| Operating System | Freebsd | Freebsd | 13.2 | p1 | All | All |
References
| Reference | Source | Link | Tags |
|---|---|---|---|
| security.FreeBSD.org/advisories/FreeBSD-SA-23:07.bhyve.asc | MISC | security.FreeBSD.org | |
| CVE-2023-3494 FreeBSD Vulnerability in NetApp Products | NetApp Product Security | MISC | security.netapp.com | |
| CVE Program record | CVE.ORG | www.cve.org | canonical |
| NVD vulnerability detail | NVD | nvd.nist.gov | canonical, analysis |
No vendor comments have been submitted for this CVE.
There are currently no legacy QID mappings associated with this CVE.