Instituto Nacional de ciberseguridad. Sección Incibe
Instituto Nacional de Ciberseguridad. Sección INCIBE-CERT

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CVE-2016-6253

Severity CVSS v4.0:
Pending analysis
Type:
CWE-59 Link Following
Publication date:
20/01/2017
Last modified:
20/04/2025

Description

mail.local in NetBSD versions 6.0 through 6.0.6, 6.1 through 6.1.5, and 7.0 allows local users to change ownership of or append data to arbitrary files on the target system via a symlink attack on the user mailbox.

Impact

Vector 3.x
CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H CVSS v3.1 Severity and Metrics:

Base Score: 7.80 HIGH
Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Attack Vector (AV): Local
Attack Complexity (AC): Low
Privileges Required (PR): Low
User Interaction (UI): None
Scope (S): Unchanged
Confidentiality (C): High
Integrity (I): High
Availability (A): High

Base Score 3.x
7.80
Severity 3.x
HIGH
Vector 2.0
AV:L/AC:L/Au:N/C:C/I:C/A:C CVSS v2.0 Severity and Metrics:

Base Score: 7.20 HIGH
Vector: AV:L/AC:L/Au:N/C:C/I:C/A:C

Attack Vector (AV): Local
Attack Complexity (AC): Low
Authentication (Au): None
Confidentiality (C): Complete
Integrity (I): Complete
Availability (A): Complete

Base Score 2.0
7.20
Severity 2.0
HIGH

Vulnerable products and versions

CPE From Up to
cpe:2.3:o:netbsd:netbsd:6.0:*:*:*:*:*:*:*
cpe:2.3:o:netbsd:netbsd:6.0.1:*:*:*:*:*:*:*
cpe:2.3:o:netbsd:netbsd:6.0.2:*:*:*:*:*:*:*
cpe:2.3:o:netbsd:netbsd:6.0.3:*:*:*:*:*:*:*
cpe:2.3:o:netbsd:netbsd:6.0.4:*:*:*:*:*:*:*
cpe:2.3:o:netbsd:netbsd:6.0.5:*:*:*:*:*:*:*
cpe:2.3:o:netbsd:netbsd:6.0.6:*:*:*:*:*:*:*
cpe:2.3:o:netbsd:netbsd:6.1:*:*:*:*:*:*:*
cpe:2.3:o:netbsd:netbsd:6.1.1:*:*:*:*:*:*:*
cpe:2.3:o:netbsd:netbsd:6.1.2:*:*:*:*:*:*:*
cpe:2.3:o:netbsd:netbsd:6.1.3:*:*:*:*:*:*:*
cpe:2.3:o:netbsd:netbsd:6.1.4:*:*:*:*:*:*:*
cpe:2.3:o:netbsd:netbsd:6.1.5:*:*:*:*:*:*:*
cpe:2.3:o:netbsd:netbsd:7.0:*:*:*:*:*:*:*

To consult the complete list of CPE names with products and versions, see this page


References to Advisories, Solutions, and Tools