CVE-2016-6241

Published: Mar 7, 2017Modified: May 13, 2026

7.8

Vector

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

Exploitability: 1.8 / Impact: 5.9

Source: NVD

Description

Integer overflow in the amap_alloc1 function in OpenBSD 5.8 and 5.9 allows local users to execute arbitrary code with kernel privileges via a large size value.

Affected (2)

Products: Openbsd: Openbsd

Openbsd

1 product

Openbsd

Configuration A

2 vulnerable

Vulnerable Software	Affected Versions
Openbsd Openbsd	Version 5.8
Openbsd Openbsd	Version 5.9

Related CWEs

CWE-190

Integer Overflow or Wraparound

The product performs a calculation that can produce an integer overflow or wraparound when the logic assumes that the resulting value will always be larger than the original value. This occurs when an integer value is incremented to a value that is too large to store in the associated representation. When this occurs, the value may become a very small or negative number.

References (12)

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

Source: cve@mitre.org

Release Notes

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

Source: cve@mitre.org

Release Notes

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

Source: cve@mitre.org

Mailing ListThird Party Advisory

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

Source: cve@mitre.org

ExploitMailing ListThird Party Advisory

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

Source: cve@mitre.org

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

Source: cve@mitre.org

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