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High severity7.5NVD Advisory· Published Aug 30, 2019· Updated Jun 17, 2026

CVE-2019-5609

CVE-2019-5609

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.

AI Insight

LLM-synthesized narrative grounded in this CVE's description and references.

Affected products

27
  • FreeBSD/FreeBSD25 versions
    cpe:2.3:o:freebsd:freebsd:11.2:-:*:*:*:*:*:*+ 24 more
    • cpe:2.3:o:freebsd:freebsd:11.2:-:*:*:*:*:*:*
    • cpe:2.3:o:freebsd:freebsd:11.2:p10:*:*:*:*:*:*
    • cpe:2.3:o:freebsd:freebsd:11.2:p11:*:*:*:*:*:*
    • cpe:2.3:o:freebsd:freebsd:11.2:p12:*:*:*:*:*:*
    • cpe:2.3:o:freebsd:freebsd:11.2:p13:*:*:*:*:*:*
    • cpe:2.3:o:freebsd:freebsd:11.2:p2:*:*:*:*:*:*
    • cpe:2.3:o:freebsd:freebsd:11.2:p3:*:*:*:*:*:*
    • cpe:2.3:o:freebsd:freebsd:11.2:p4:*:*:*:*:*:*
    • cpe:2.3:o:freebsd:freebsd:11.2:p5:*:*:*:*:*:*
    • cpe:2.3:o:freebsd:freebsd:11.2:p6:*:*:*:*:*:*
    • cpe:2.3:o:freebsd:freebsd:11.2:p7:*:*:*:*:*:*
    • cpe:2.3:o:freebsd:freebsd:11.2:p8:*:*:*:*:*:*
    • cpe:2.3:o:freebsd:freebsd:11.2:p9:*:*:*:*:*:*
    • cpe:2.3:o:freebsd:freebsd:11.3:*:*:*:*:*:*:*
    • cpe:2.3:o:freebsd:freebsd:11.3:-:*:*:*:*:*:*
    • cpe:2.3:o:freebsd:freebsd:11.3:p1:*:*:*:*:*:*
    • cpe:2.3:o:freebsd:freebsd:11.3:p2:*:*:*:*:*:*
    • cpe:2.3:o:freebsd:freebsd:11.3:p3:*:*:*:*:*:*
    • cpe:2.3:o:freebsd:freebsd:12.0:-:*:*:*:*:*:*
    • cpe:2.3:o:freebsd:freebsd:12.0:p1:*:*:*:*:*:*
    • cpe:2.3:o:freebsd:freebsd:12.0:p3:*:*:*:*:*:*
    • cpe:2.3:o:freebsd:freebsd:12.0:p4:*:*:*:*:*:*
    • cpe:2.3:o:freebsd:freebsd:12.0:p5:*:*:*:*:*:*
    • cpe:2.3:o:freebsd:freebsd:12.0:p8:*:*:*:*:*:*
    • (no CPE)range: <12.0-RELEASE-p9, <11.3-RELEASE-p2, <11.2-RELEASE-p13
  • FreeBSD/bhyve e1000 device emulationdescription
  • FreeBSD/bhyvellm-fuzzy
    Range: <12.0-RELEASE-p9, <11.3-RELEASE-p2, <11.2-RELEASE-p13

Patches

Vulnerability mechanics

References

2

News mentions

0

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