CVE-2016-6239

MEDIUM

OpenBSD 5.8-5.9 - Denial of Service via mmap __MAP_NOFAULT Size Handling

Title source: llm

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.

References (6)

Core 6

Core References

Third Party Advisory, VDB Entry vdb-entry x_refsource_sectrack

http://www.securitytracker.com/id/1036318

Release Notes x_refsource_confirm

http://www.openbsd.org/errata59.html

Mailing List, Third Party Advisory mailing-list x_refsource_mlist

http://www.openwall.com/lists/oss-security/2016/07/14/5

Exploit, Mailing List, Third Party Advisory mailing-list x_refsource_mlist

http://www.openwall.com/lists/oss-security/2016/07/17/7

Release Notes x_refsource_confirm

http://www.openbsd.org/errata58.html

Third Party Advisory, VDB Entry vdb-entry x_refsource_bid

http://www.securityfocus.com/bid/91805

Scores

CVSS v3 5.5

EPSS 0.0014

EPSS Percentile 33.4%

Attack Vector LOCAL

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

Details

CWE

CWE-20

Status published

Products (2)

openbsd/openbsd 5.8

openbsd/openbsd 5.9

Published Mar 07, 2017

Tracked Since Feb 18, 2026