CVE-2019-5609 — HIGH (7.5) — White Hats Nepal

Vulnerability Description

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.

CVSS Score

7.5

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality

NONE

Integrity

HIGH

Availability

NONE

Affected Products

Vendor	Product	Versions
Freebsd	Freebsd	11.2

Related Weaknesses (CWE)

CWE-787

References

https://security.FreeBSD.org/advisories/FreeBSD-SA-19:21.bhyve.ascPatchVendor Advisory
https://security.netapp.com/advisory/ntap-20190910-0002/Third Party Advisory
https://security.FreeBSD.org/advisories/FreeBSD-SA-19:21.bhyve.ascPatchVendor Advisory
https://security.netapp.com/advisory/ntap-20190910-0002/Third Party Advisory

FAQ

What is CVE-2019-5609?

CVE-2019-5609 is a vulnerability with a CVSS score of 7.5 (HIGH). 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 d...

How severe is CVE-2019-5609?

CVE-2019-5609 has been rated HIGH with a CVSS base score of 7.5/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2019-5609?

Check the references section above for vendor advisories and patch information. Affected products include: Freebsd Freebsd.