CVE-2016-6522 - Vulnerability Details - OpenCVE

Description

Integer overflow in the uvm_map_isavail function in uvm/uvm_map.c in OpenBSD 5.9 allows local users to cause a denial of service (kernel panic) via a crafted mmap call, which triggers the new mapping to overlap with an existing mapping.

Published: 2017-03-07

Score: 5.5 Medium

EPSS: < 1% Very Low

KEV: No

Impact:

Action:

Analysis

Analysis and contextual insights are available on OpenCVE Cloud.

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions

n/a

n/a

affected

Version	Status	Constraints
`n/a`	affected	—

Configuration 1 [-]

cpe:2.3:o:openbsd:openbsd:5.9:*:*:*:*:*:*:*

No data.

No data available yet.

Remediation

No vendor fix or workaround currently provided.

Additional remediation guidance may be available on OpenCVE Cloud.

Tracking

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Advisories

Source	ID	Title
EUVD	EUVD-2016-7443	Integer overflow in the uvm_map_isavail function in uvm/uvm_map.c in OpenBSD 5.9 allows local users to cause a denial of service (kernel panic) via a crafted mmap call, which triggers the new mapping to overlap with an existing mapping.

No CVSS v4.0

No CVSS v3.1

Attack Vector Local

Attack Complexity Low

Privileges Required Low

Scope Unchanged

Confidentiality Impact None

Integrity Impact None

Availability Impact High

User Interaction None

Access Vector Local

Access Complexity Low

Authentication None

Confidentiality Impact None

Integrity Impact None

Availability Impact Complete

This CVE is not in the KEV list.

The EPSS score is 0.00083.

Key SSVC decision points have not yet been added.

References

Link	Providers
http://ftp.openbsd.org/pub/OpenBSD/patches/5.9/common/023_uvmisavail.patch.sig
http://www.openwall.com/lists/oss-security/2016/08/02/12
http://www.openwall.com/lists/oss-security/2016/08/02/8
http://www.securityfocus.com/bid/92264

History

No history.

Subscriptions

Openbsd Openbsd

MITRE

Status: PUBLISHED

Assigner: mitre

Published: 2017-03-07T16:00:00.000Z

Updated: 2024-08-06T01:29:20.253Z

Reserved: 2016-08-02T00:00:00.000Z

Link: CVE-2016-6522

Vulnrichment

No data.

NVD

Status : Modified

Published: 2017-03-07T16:59:00.837

Modified: 2026-05-13T00:24:29.033

Link: CVE-2016-6522

Redhat

No data.

OpenCVE Enrichment

No data.

Weaknesses

CWE-190

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