CVE-2021-29631 | BDVDB-2026-159786 Detail

FreeBSD

Description#

In FreeBSD 13.0-STABLE before n246941-20f96f215562, 12.2-STABLE before r370400, 11.4-STABLE before r370399, 13.0-RELEASE before p4, 12.2-RELEASE before p10, and 11.4-RELEASE before p13, certain VirtIO-based device models in bhyve failed to handle errors when fetching I/O descriptors. A malicious guest may cause the device model to operate on uninitialized I/O vectors leading to memory corruption, crashing of the bhyve process, and possibly arbitrary code execution in the bhyve process.

Impact#

No impact statement in the source data.

Weaknesses#

No weakness recorded in the source data.

References#

https://security.FreeBSD.org/advisories/FreeBSD-SA-21:13.bhyve.asc
https://security.netapp.com/advisory/ntap-20210923-0004/

Exploit#

No public exploit known

History#

Version 12021-08-30Record published in the CVE List.
Version 22024-08-03Most recent update recorded in the CVE List.