CVE-2019-5609
moderate-risk
Published 2019-08-30
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.
Do I need to act?
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0.35% chance of exploitation
EPSS score — low exploit probability
-
Not on CISA KEV list
No confirmed active exploitation reported to CISA
?
Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
7
CVSS 7.5/10
High
NETWORK
/ LOW complexity
Affected Products (20)
Affected Vendors
References (4)
Third Party Advisory
https://security.netapp.com/advisory/ntap-20190910-0002/
Third Party Advisory
https://security.netapp.com/advisory/ntap-20190910-0002/
48
/ 100
moderate-risk
Severity
26/34 · High
Exploitability
1/34 · Minimal
Exposure
21/34 · High