CVE-2016-6243 — MEDIUM (5.5)

Vulnerability Description

thrsleep in kern/kern_synch.c in OpenBSD 5.8 and 5.9 allows local users to cause a denial of service (kernel panic) via a crafted value in the tsp parameter of the __thrsleep system call.

CVSS Score

5.5

MEDIUM

CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality

NONE

Integrity

NONE

Availability

HIGH

Affected Products

Vendor	Product	Versions
Openbsd	Openbsd	5.8

Related Weaknesses (CWE)

CWE-20

References

http://www.openbsd.org/errata58.htmlRelease Notes
http://www.openbsd.org/errata59.htmlRelease Notes
http://www.openwall.com/lists/oss-security/2016/07/14/5Mailing ListThird Party Advisory
http://www.openwall.com/lists/oss-security/2016/07/17/7ExploitMailing ListThird Party Advisory
http://www.securityfocus.com/bid/91805
http://www.openbsd.org/errata58.htmlRelease Notes
http://www.openbsd.org/errata59.htmlRelease Notes
http://www.openwall.com/lists/oss-security/2016/07/14/5Mailing ListThird Party Advisory
http://www.openwall.com/lists/oss-security/2016/07/17/7ExploitMailing ListThird Party Advisory
http://www.securityfocus.com/bid/91805

FAQ

What is CVE-2016-6243?

CVE-2016-6243 is a vulnerability with a CVSS score of 5.5 (MEDIUM). thrsleep in kern/kern_synch.c in OpenBSD 5.8 and 5.9 allows local users to cause a denial of service (kernel panic) via a crafted value in the tsp parameter of the __thrsleep system call.

How severe is CVE-2016-6243?

CVE-2016-6243 has been rated MEDIUM with a CVSS base score of 5.5/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2016-6243?

Check the references section above for vendor advisories and patch information. Affected products include: Openbsd Openbsd.