CVEvulnerability
CVE-2019-5606
7.8 HIGH
Official page ↗
- Status
- Modified
- Published
- 2019-07-26
- Last modified
- 2026-06-17
- Assigner
- [email protected]
- CVSS 3.1 ([email protected])
- 7.8 HIGH — CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- CVSS 2.0 ([email protected])
- 7.2 HIGH — AV:L/AC:L/Au:N/C:C/I:C/A:C
- Weaknesses
- CWE-416
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.
Affected configurations
• freebsd freebsd 11.0
• freebsd freebsd 11.2
• freebsd freebsd 11.3
• freebsd freebsd 12.0
Related
Weakness · CWE (1)
- CWE-416 Use After Free weakness
References
- http://packetstormsecurity.com/files/153748/FreeBSD-Security-Advisory-FreeBSD-SA-19-13.pts.html Third Party Advisory, VDB Entry
- https://security.FreeBSD.org/advisories/FreeBSD-SA-19:13.pts.asc Vendor Advisory
- https://security.netapp.com/advisory/ntap-20190814-0003/ Third Party Advisory
- http://packetstormsecurity.com/files/153748/FreeBSD-Security-Advisory-FreeBSD-SA-19-13.pts.html Third Party Advisory, VDB Entry
- https://security.FreeBSD.org/advisories/FreeBSD-SA-19:13.pts.asc Vendor Advisory
- https://security.netapp.com/advisory/ntap-20190814-0003/ Third Party Advisory