High severity7.8NVD Advisory· Published Jul 26, 2019· Updated Jun 17, 2026
CVE-2019-5606
CVE-2019-5606
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.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
6FreeBSD before 12.0-RELEASE-p8+ 5 more
- (no CPE)range: FreeBSD before 12.0-RELEASE-p8
- 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:-:*:*:*:*:*:*
- (no CPE)range: < 12.0-RELEASE-p8, < 11.3-RELEASE-p1, < 11.2-RELEASE-p12
Patches
Vulnerability mechanics
References
3- packetstormsecurity.com/files/153748/FreeBSD-Security-Advisory-FreeBSD-SA-19-13.pts.htmlnvdThird Party AdvisoryVDB Entry
- security.freebsd.org/advisories/FreeBSD-SA-19:13.pts.ascnvdVendor Advisory
- security.netapp.com/advisory/ntap-20190814-0003/nvdThird Party Advisory
News mentions
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