Description (CNA)
The HDA audio device model did not check for zero-length Buffer Descriptor List (BDL) entries when starting a stream. A zero-length entry caused an out-of-bounds read or write during DMA transfer processing. BDL fields were also subject to modification by the guest after validation. A malicious guest can crash the bhyve process or potentially execute arbitrary code in the host userspace context running the virtual machine, subject to bhyve's Capsicum sandbox.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| FreeBSD / FreeBSD | affected 15.1-RELEASE before p5; affected 14.5-RELEASE before p2; affected 14.4-RELEASE before p11 |
CWE
CWE-126, CWE-362, CWE-787
References
ADP enrichment
No English description supplied.
No references supplied.