CVE-2016-6239

Published on: 03/07/2017 12:00:00 AM UTC

Last Modified on: 03/23/2021 11:27:12 PM UTC

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

Certain versions of Openbsd from Openbsd contain the following vulnerability:

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.

  • CVE-2016-6239 has been assigned by URL Logo [email protected] to track the vulnerability - currently rated as MEDIUM severity.

CVSS3 Score: 5.5 - MEDIUM

Attack
Vector
Attack
Complexity
Privileges
Required
User
Interaction
LOCAL LOW LOW NONE
Scope Confidentiality
Impact
Integrity
Impact
Availability
Impact
UNCHANGED NONE NONE HIGH

CVSS2 Score: 4.9 - MEDIUM

Access
Vector
Access
Complexity
Authentication
LOCAL LOW NONE
Confidentiality
Impact
Integrity
Impact
Availability
Impact
NONE NONE COMPLETE

CVE References

Description Tags Link
OpenBSD 5.9 Errata Release Notes
www.openbsd.org
text/html
URL Logo CONFIRM www.openbsd.org/errata59.html
OpenBSD 5.8 Errata Release Notes
www.openbsd.org
text/html
URL Logo CONFIRM www.openbsd.org/errata58.html
OpenBSD Multiple Memory Corruption and Denial of Service Vulnerabilities cve.report (archive)
text/html
URL Logo BID 91805
OpenBSD sys_mmap() Resource Bug Lets Local Users Cause Denial of Service Conditions on the Target System - SecurityTracker www.securitytracker.com
text/html
URL Logo SECTRACK 1036318
oss-security - Multiple Bugs in OpenBSD Kernel Mailing List
Third Party Advisory
www.openwall.com
text/html
URL Logo MLIST [oss-security] 20160714 Multiple Bugs in OpenBSD Kernel
oss-security - Re: Multiple Bugs in OpenBSD Kernel Exploit
Mailing List
Third Party Advisory
www.openwall.com
text/html
URL Logo MLIST [oss-security] 20160717 ReL Multiple Bugs in OpenBSD Kernel

Known Affected Configurations (CPE V2.3)

Type Vendor Product Version Update Edition Language
Operating
System
OpenbsdOpenbsd5.8AllAllAll
Operating
System
OpenbsdOpenbsd5.9AllAllAll
Operating
System
OpenbsdOpenbsd5.8AllAllAll
Operating
System
OpenbsdOpenbsd5.9AllAllAll
  • cpe:2.3:o:openbsd:openbsd:5.8:*:*:*:*:*:*:*:
  • cpe:2.3:o:openbsd:openbsd:5.9:*:*:*:*:*:*:*:
  • cpe:2.3:o:openbsd:openbsd:5.8:*:*:*:*:*:*:*:
  • cpe:2.3:o:openbsd:openbsd:5.9:*:*:*:*:*:*:*: