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

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CVE-2017-16671

Severity CVSS v4.0:
Pending analysis
Type:
CWE-119 Buffer Errors
Publication date:
09/11/2017
Last modified:
20/04/2025

Description

A Buffer Overflow issue was discovered in Asterisk Open Source 13 before 13.18.1, 14 before 14.7.1, and 15 before 15.1.1 and Certified Asterisk 13.13 before 13.13-cert7. No size checking is done when setting the user field for Party B on a CDR. Thus, it is possible for someone to use an arbitrarily large string and write past the end of the user field storage buffer. NOTE: this is different from CVE-2017-7617, which was only about the Party A buffer.

Impact

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

Base Score: 8.80 HIGH
Vector: CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Attack Vector (AV): Network
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
8.80
Severity 3.x
HIGH
Vector 2.0
AV:N/AC:L/Au:S/C:P/I:P/A:P CVSS v2.0 Severity and Metrics:

Base Score: 6.50 MEDIUM
Vector: AV:N/AC:L/Au:S/C:P/I:P/A:P

Attack Vector (AV): Network
Attack Complexity (AC): Low
Authentication (Au): Single
Confidentiality (C): Physical
Integrity (I): Physical
Availability (A): Physical

Base Score 2.0
6.50
Severity 2.0
MEDIUM

Vulnerable products and versions

CPE From Up to
cpe:2.3:a:digium:asterisk:*:*:*:*:*:*:*:* 13.0.0 (including) 13.18.1 (excluding)
cpe:2.3:a:digium:asterisk:*:*:*:*:*:*:*:* 14.0.0 (including) 14.7.1 (excluding)
cpe:2.3:a:digium:asterisk:*:*:*:*:*:*:*:* 15.0.0 (including) 15.1.1 (excluding)
cpe:2.3:a:digium:certified_asterisk:13.13.0:*:*:*:*:*:*:*
cpe:2.3:a:digium:certified_asterisk:13.13.0:cert1:*:*:*:*:*:*
cpe:2.3:a:digium:certified_asterisk:13.13.0:cert1_rc1:*:*:*:*:*:*
cpe:2.3:a:digium:certified_asterisk:13.13.0:cert1_rc2:*:*:*:*:*:*
cpe:2.3:a:digium:certified_asterisk:13.13.0:cert1_rc3:*:*:*:*:*:*
cpe:2.3:a:digium:certified_asterisk:13.13.0:cert1_rc4:*:*:*:*:*:*
cpe:2.3:a:digium:certified_asterisk:13.13.0:cert2:*:*:*:*:*:*
cpe:2.3:a:digium:certified_asterisk:13.13.0:cert3:*:*:*:*:*:*
cpe:2.3:a:digium:certified_asterisk:13.13.0:cert4:*:*:*:*:*:*
cpe:2.3:a:digium:certified_asterisk:13.13.0:cert5:*:*:*:*:*:*
cpe:2.3:a:digium:certified_asterisk:13.13.0:cert6:*:*:*:*:*:*

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


References to Advisories, Solutions, and Tools