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TI-2019-03974 Aliases CVE-2019-5609GHSA-pfg4-gjc6-77cp

Out-of-bounds write in FreeBSD

Priority LOW 35CWE-787Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
—
Confidentiality · integrity · availability
None · High · None
Fix status
Fixed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA.

Summary

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.

Why it matters now

EPSS 0.01293 70th percentileScored 2026-11-07
Fix Fixed FreeBSD: 12.0-RELEASE-p9, 11.3-RELEASE-p2

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
—FreeBSDbefore 12.0-RELEASE-p9; before 11.3-RELEASE-p2; and before 11.2-RELEASE-p1312.0-RELEASE-p9, 11.3-RELEASE-p2Patch availableCNA
  • FreeBSD Vendor— Affected before 12.0-RELEASE-p9; before 11.3-RELEASE-p2; and before 11.2-RELEASE-p13 Fixed in 12.0-RELEASE-p9, 11.3-RELEASE-p2 Patch available CNA

CPE configurations NVD · 24

CPEVersionsRoleVendor
cpe:2.3:o:freebsd:freebsd:11.2:-:*:*:*:*:*:*11.2VulnerableFreeBSD
cpe:2.3:o:freebsd:freebsd:11.2:p10:*:*:*:*:*:*11.2 p10VulnerableFreeBSD
cpe:2.3:o:freebsd:freebsd:11.2:p11:*:*:*:*:*:*11.2 p11VulnerableFreeBSD
cpe:2.3:o:freebsd:freebsd:11.2:p12:*:*:*:*:*:*11.2 p12VulnerableFreeBSD
cpe:2.3:o:freebsd:freebsd:11.2:p13:*:*:*:*:*:*11.2 p13VulnerableFreeBSD
cpe:2.3:o:freebsd:freebsd:11.2:p2:*:*:*:*:*:*11.2 p2VulnerableFreeBSD
cpe:2.3:o:freebsd:freebsd:11.2:p3:*:*:*:*:*:*11.2 p3VulnerableFreeBSD
cpe:2.3:o:freebsd:freebsd:11.2:p4:*:*:*:*:*:*11.2 p4VulnerableFreeBSD
cpe:2.3:o:freebsd:freebsd:11.2:p5:*:*:*:*:*:*11.2 p5VulnerableFreeBSD
cpe:2.3:o:freebsd:freebsd:11.2:p6:*:*:*:*:*:*11.2 p6VulnerableFreeBSD
  • cpe:2.3:o:freebsd:freebsd:11.2:-:*:*:*:*:*:* Versions 11.2 Vulnerable ·FreeBSD
  • cpe:2.3:o:freebsd:freebsd:11.2:p10:*:*:*:*:*:* Versions 11.2 p10 Vulnerable ·FreeBSD
  • cpe:2.3:o:freebsd:freebsd:11.2:p11:*:*:*:*:*:* Versions 11.2 p11 Vulnerable ·FreeBSD
  • cpe:2.3:o:freebsd:freebsd:11.2:p12:*:*:*:*:*:* Versions 11.2 p12 Vulnerable ·FreeBSD
  • cpe:2.3:o:freebsd:freebsd:11.2:p13:*:*:*:*:*:* Versions 11.2 p13 Vulnerable ·FreeBSD
  • cpe:2.3:o:freebsd:freebsd:11.2:p2:*:*:*:*:*:* Versions 11.2 p2 Vulnerable ·FreeBSD
  • cpe:2.3:o:freebsd:freebsd:11.2:p3:*:*:*:*:*:* Versions 11.2 p3 Vulnerable ·FreeBSD
  • cpe:2.3:o:freebsd:freebsd:11.2:p4:*:*:*:*:*:* Versions 11.2 p4 Vulnerable ·FreeBSD
  • cpe:2.3:o:freebsd:freebsd:11.2:p5:*:*:*:*:*:* Versions 11.2 p5 Vulnerable ·FreeBSD
  • cpe:2.3:o:freebsd:freebsd:11.2:p6:*:*:*:*:*:* Versions 11.2 p6 Vulnerable ·FreeBSD
Show 14 more CPE
CPEVersionsRoleVendor
cpe:2.3:o:freebsd:freebsd:11.2:p7:*:*:*:*:*:*11.2 p7VulnerableFreeBSD
cpe:2.3:o:freebsd:freebsd:11.2:p8:*:*:*:*:*:*11.2 p8VulnerableFreeBSD
cpe:2.3:o:freebsd:freebsd:11.2:p9:*:*:*:*:*:*11.2 p9VulnerableFreeBSD
cpe:2.3:o:freebsd:freebsd:11.3:*:*:*:*:*:*:*11.3VulnerableFreeBSD
cpe:2.3:o:freebsd:freebsd:11.3:-:*:*:*:*:*:*11.3VulnerableFreeBSD
cpe:2.3:o:freebsd:freebsd:11.3:p1:*:*:*:*:*:*11.3 p1VulnerableFreeBSD
cpe:2.3:o:freebsd:freebsd:11.3:p2:*:*:*:*:*:*11.3 p2VulnerableFreeBSD
cpe:2.3:o:freebsd:freebsd:11.3:p3:*:*:*:*:*:*11.3 p3VulnerableFreeBSD
cpe:2.3:o:freebsd:freebsd:12.0:-:*:*:*:*:*:*12.0VulnerableFreeBSD
cpe:2.3:o:freebsd:freebsd:12.0:p1:*:*:*:*:*:*12.0 p1VulnerableFreeBSD
cpe:2.3:o:freebsd:freebsd:12.0:p3:*:*:*:*:*:*12.0 p3VulnerableFreeBSD
cpe:2.3:o:freebsd:freebsd:12.0:p4:*:*:*:*:*:*12.0 p4VulnerableFreeBSD
cpe:2.3:o:freebsd:freebsd:12.0:p5:*:*:*:*:*:*12.0 p5VulnerableFreeBSD
cpe:2.3:o:freebsd:freebsd:12.0:p8:*:*:*:*:*:*12.0 p8VulnerableFreeBSD
  • cpe:2.3:o:freebsd:freebsd:11.2:p7:*:*:*:*:*:* Versions 11.2 p7 Vulnerable ·FreeBSD
  • cpe:2.3:o:freebsd:freebsd:11.2:p8:*:*:*:*:*:* Versions 11.2 p8 Vulnerable ·FreeBSD
  • cpe:2.3:o:freebsd:freebsd:11.2:p9:*:*:*:*:*:* Versions 11.2 p9 Vulnerable ·FreeBSD
  • cpe:2.3:o:freebsd:freebsd:11.3:*:*:*:*:*:*:* Versions 11.3 Vulnerable ·FreeBSD
  • cpe:2.3:o:freebsd:freebsd:11.3:-:*:*:*:*:*:* Versions 11.3 Vulnerable ·FreeBSD
  • cpe:2.3:o:freebsd:freebsd:11.3:p1:*:*:*:*:*:* Versions 11.3 p1 Vulnerable ·FreeBSD
  • cpe:2.3:o:freebsd:freebsd:11.3:p2:*:*:*:*:*:* Versions 11.3 p2 Vulnerable ·FreeBSD
  • cpe:2.3:o:freebsd:freebsd:11.3:p3:*:*:*:*:*:* Versions 11.3 p3 Vulnerable ·FreeBSD
  • cpe:2.3:o:freebsd:freebsd:12.0:-:*:*:*:*:*:* Versions 12.0 Vulnerable ·FreeBSD
  • cpe:2.3:o:freebsd:freebsd:12.0:p1:*:*:*:*:*:* Versions 12.0 p1 Vulnerable ·FreeBSD
  • cpe:2.3:o:freebsd:freebsd:12.0:p3:*:*:*:*:*:* Versions 12.0 p3 Vulnerable ·FreeBSD
  • cpe:2.3:o:freebsd:freebsd:12.0:p4:*:*:*:*:*:* Versions 12.0 p4 Vulnerable ·FreeBSD
  • cpe:2.3:o:freebsd:freebsd:12.0:p5:*:*:*:*:*:* Versions 12.0 p5 Vulnerable ·FreeBSD
  • cpe:2.3:o:freebsd:freebsd:12.0:p8:*:*:*:*:*:* Versions 12.0 p8 Vulnerable ·FreeBSD

Remediation

  • Fix · CNA FreeBSD Fixed in 12.0-RELEASE-p9, 11.3-RELEASE-p2

Timeline

  1. 2026-10-02 Threatist record created from CVE-2019-5609
  2. 2026-10-03 Alias added: GHSA-pfg4-gjc6-77cp

References

Patch 1

Advisory 1

  • TI-2011-04182 Buffer overflow in libtelnet/encrypt.c in telnetd in FreeBSD 7.3 through 9.0, MIT… CVSS 2.0HIGH 10.0
  • TI-2007-03684 Integer overflow in print-bgp.c in the BGP dissector in tcpdump 3.9.6 and earlier allows… CVSS 3.1CRITICAL 9.8
  • TI-2002-00376 Integer overflow in xdr_array function in RPC servers for operating systems that use… CVSS 3.1CRITICAL 9.8
  • TI-2024-05929 Openssh: regresshion - race condition in ssh allows rce/dos CVSS 3.1HIGH 8.1
  • TI-2003-00437 Off-by-one error in the fb_realpath() function, as derived from the realpath function in… CVSS 3.1CRITICAL 9.8
  • TI-2003-00642 The prescan function in Sendmail 8.12.9 allows remote attackers to execute arbitrary code… CVSS 2.0HIGH 10.0
See all 576 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences