CVE-2019-5606

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.

CVSS v3.0 7.8 HIGH
CVSS v2.0 7.2 HIGH

7.8^/10

CVSS v3.0 : HIGH

Vector :

Exploitability : 1.8 / Impact : 5.9

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

7.2^/10

CVSS v2.0 : HIGH

Vector : AV:L/AC:L/Au:N/C:C/I:C/A:C

Exploitability : 3.9 / Impact : 10.0

Access Vector LOCAL

Access Complexity LOW

Authentication NONE

Confidentiality Impact COMPLETE

Integrity Impact COMPLETE

Availability Impact COMPLETE

References

Link	Resource
https://security.FreeBSD.org/advisories/FreeBSD-SA-19:13.pts.asc	Vendor Advisory
http://packetstormsecurity.com/files/153748/FreeBSD-Security-Advisory-FreeBSD-SA-19-13.pts.html	Third Party Advisory VDB Entry
https://security.netapp.com/advisory/ntap-20190814-0003/	Third Party Advisory

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Configurations

Configuration 1 (hide)

OR	cpe:2.3:o:freebsd:freebsd:12.0:-::::::
	cpe:2.3:o:freebsd:freebsd:11.2:-::::::
	cpe:2.3:o:freebsd:freebsd:11.0:-::::::
	cpe:2.3:o:freebsd:freebsd:11.3:-::::::

Information

Published : 2019-07-25 18:15

Updated : 2023-01-31 18:12

NVD link : CVE-2019-5606

Mitre link : CVE-2019-5606

JSON object : View

CWE

CWE-416

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Products Affected

freebsd

freebsd

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