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.
History

No history.

cve-icon MITRE

Status: PUBLISHED

Assigner: freebsd

Published: 2019-07-26T00:33:33

Updated: 2024-08-04T20:01:51.956Z

Reserved: 2019-01-07T00:00:00

Link: CVE-2019-5606

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Analyzed

Published: 2019-07-26T01:15:10.923

Modified: 2023-02-01T02:12:16.167

Link: CVE-2019-5606

cve-icon Redhat

No data.