Vulnerability Details CVE-2019-5609
In FreeBSD 12.0-STABLE before r350619, 12.0-RELEASE before 12.0-RELEASE-p9, 11.3-STABLE before r350619, 11.3-RELEASE before 11.3-RELEASE-p2, and 11.2-RELEASE before 11.2-RELEASE-p13, the bhyve e1000 device emulation used a guest-provided value to determine the size of the on-stack buffer without validation when TCP segmentation offload is requested for a transmitted packet. A misbehaving bhyve guest could overwrite memory in the bhyve process on the host.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.007
EPSS Ranking 70.2%
CVSS Severity
CVSS v3 Score 7.5
CVSS v2 Score 6.4
References