CVE-2021-29631

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…

published August 30, 2021

CVSS
—
EPSS
0%
Percentile
20.0
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS
Not scored
CVSS v4.0
Not supplied
EPSS
0.00286 · 20.0th percentile
Published
2021-08-30T18:00Z
EPSS history
Timeline
  • 30 AUG 18:00Z
    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…
    cvelistv5