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CVE-2019-5606 Details

Description

In FreeBSD 12.0-STABLE before r349805, 12.0-RELEASE before 12.0-RELEASE-p8, 11.3-STABLE before r349806, 11.3-RELEASE before 11.3-RELEASE-p1, and 11.2-RELEASE before 11.2-RELEASE-p12, code which handles close of a descriptor created by posix_openpt fails to undo a signal configuration. This causes an incorrect signal to be raised leading to a write after free of kernel memory allowing a malicious user to gain root privileges or escape a jail.

Metrics

CVSS 3.x Severity and Vector Strings:

NIST: [email protected]CVSS-B:7.8 HIGHVector:CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

References to Advisories, Solutions, and Tools

By selecting these links, you will be leaving this site. These are references gathered from the official CVE record and are not endorsed by Volerion.

URL	Source(s)	Tag(s)
http://packetstormsecurity.com/files/153748/FreeBSD-Security-Advisory-FreeBSD-SA-19-13.pts.html	CVE	Third Party AdvisoryVDB Entry
https://security.FreeBSD.org/advisories/FreeBSD-SA-19:13.pts.asc	CVE	Vendor Advisory
https://security.netapp.com/advisory/ntap-20190814-0003/	CVE	Third Party Advisory
http://packetstormsecurity.com/files/153748/FreeBSD-Security-Advisory-FreeBSD-SA-19-13.pts.html	[email protected]	Third Party AdvisoryVDB Entry
https://security.FreeBSD.org/advisories/FreeBSD-SA-19:13.pts.asc	[email protected]	Vendor Advisory
https://security.netapp.com/advisory/ntap-20190814-0003/	[email protected]	Third Party Advisory

see all 6 references

Weakness Enumeration

CWE-ID	CWE Name	Source
CWE-416	Use After Free	[email protected]

Affected Products

Product	Versions
freebsd freebsd	11.0 - 11.2 - 11.3 - 12.0 -
CPE cpe:2.3:o:freebsd:freebsd:11.0:-:::::: cpe:2.3:o:freebsd:freebsd:11.2:-:::::: cpe:2.3:o:freebsd:freebsd:11.3:-:::::: cpe:2.3:o:freebsd:freebsd:12.0:-:::::: Remediation No remediation found in references.

Change History

7 change records found show changes

Date	Action	Recorded By
Jun 17, 2026	CVE Modified	[email protected]
Nov 21, 2024	CVE Modified	CVE
May 14, 2024	CVE Modified	[email protected]
Feb 1, 2023	Modified Analysis	[email protected]
Aug 14, 2019	CVE Modified	[email protected]
Aug 7, 2019	Initial Analysis	[email protected]
Jul 27, 2019	CVE Modified	[email protected]