vulnerability
FreeBSD: VID-5721ae65-b30a-11e9-a87f-a4badb2f4699 (CVE-2019-5606): FreeBSD -- pts(4) write-after-free
| Severity | CVSS | Published | Added | Modified |
|---|---|---|---|---|
| 7 | (AV:L/AC:L/Au:N/C:C/I:C/A:C) | Jul 30, 2019 | Jul 31, 2019 | Dec 10, 2025 |
Severity
7
CVSS
(AV:L/AC:L/Au:N/C:C/I:C/A:C)
Published
Jul 30, 2019
Added
Jul 31, 2019
Modified
Dec 10, 2025
Description
Problem Description: The code which handles a close(2) of a descriptor created by posix_openpt(2) fails to undo the configuration which causes SIGIO to be raised. This bug can lead to a write-after-free of kernel memory. Impact: The bug permits malicious code to trigger a write-after-free, which may be used to gain root privileges or escape a jail.
Solutions
freebsd-upgrade-base-12_0-release-p8freebsd-upgrade-base-11_2-release-p12freebsd-upgrade-base-11_3-release-p1
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