CVE-2016-6239 Information

Description

The mmap extension __MAP_NOFAULT in OpenBSD 5.8 and 5.9 allows attackers to cause a denial of service (kernel panic and crash) via a large size value.

CVSS Vector

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

Reference

http://www.openbsd.org/errata58.html http://www.openbsd.org/errata59.html http://www.openwall.com/lists/oss-security/2016/07/14/5 http://www.openwall.com/lists/oss-security/2016/07/17/7 http://www.securityfocus.com/bid/91805 http://www.securitytracker.com/id/1036318

Attack Complexity

LOW

Privileges Required

LOW

User Interaction Required

LOW

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

NONE

Availability Impact

NONE

Base Score

HIGH

Base Severity

5.5