TI-2019-03961 Aliases CVE-2019-5596 GHSA-89xf-9vcr-5475

In FreeBSD 11.2-STABLE after r338618 and before r343786, 12.0-STABLE before r343781, and…

MEDIUM 41Published 2019-02-12 · Updated 2024-08-04

Key facts

Attack vector: Local
Privileges required: Low
User interaction: None
Attack complexity: Low
Impact type: —
Confidentiality · integrity · availability: High · High · High
Fix status: No fix listed

Attack profile from CVSS 3.0 · NVD. Fix status from CNA.

Summary

In FreeBSD 11.2-STABLE after r338618 and before r343786, 12.0-STABLE before r343781, and 12.0-RELEASE before 12.0-RELEASE-p3, a bug in the reference count implementation for UNIX domain sockets can cause a file structure to be incorrectly released potentially allowing a malicious local user to gain root privileges or escape from a jail.

Why it matters now

EPSS 0.01229 69th percentileScored 2026-11-07

Fix No fix listed No fixed version in the sources yet

SSVC decision points

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

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
FreeBSD	FreeBSD	FreeBSD 12.0 before 12.0-RELEASE-p3	—	No fix listed	CNA

FreeBSD VendorFreeBSD Affected FreeBSD 12.0 before 12.0-RELEASE-p3 Fixed in — No fix listed CNA

CPE configurations NVD · 2

CPE	Versions	Role	Vendor
cpe:2.3:a:freebsd:freebsd:11.2:::::::*	11.2	Vulnerable	FreeBSD
cpe:2.3:a:freebsd:freebsd:12.0:::::::*	12.0	Vulnerable	FreeBSD

cpe:2.3:a:freebsd:freebsd:11.2:*:*:*:*:*:*:* Versions 11.2 Vulnerable ·FreeBSD
cpe:2.3:a:freebsd:freebsd:12.0:*:*:*:*:*:*:* Versions 12.0 Vulnerable ·FreeBSD

Remediation

No fixed version listed by the sources yet.

Timeline

2026-10-02 Threatist record created from CVE-2019-5596
2026-10-03 Alias added: GHSA-89xf-9vcr-5475

References

Patch 1

FreeBSD-SA-19:02

Other 1

http://packetstormsecurity.com/files/155790/FreeBSD-fd-Privilege-Escalation.html

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