National Vulnerability Database

National Vulnerability Database

National Vulnerability
Database

CVE-2017-16671 Detail

Current 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.

Source:  MITRE      Last Modified:  11/08/2017      View Analysis Description

Quick Info

CVE Dictionary Entry:
CVE-2017-16671
Original release date:
11/08/2017
Last revised:
12/31/2017
Source:
US-CERT/NIST

Impact

CVSS Severity (version 3.0):
CVSS v3 Base Score:
8.8 High
Vector:
CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H (legend)
Impact Score:
5.9
Exploitability Score:
2.8
CVSS Version 3 Metrics:
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
CVSS Severity (version 2.0):
CVSS v2 Base Score:
6.5 MEDIUM
Vector:
(AV:N/AC:L/Au:S/C:P/I:P/A:P) (legend)
Impact Subscore:
6.4
Exploitability Subscore:
8.0
CVSS Version 2 Metrics:
Access Vector:
Network exploitable
Access Complexity:
Low
Authentication:
Required to exploit
Impact Type:
Allows unauthorized disclosure of information; Allows unauthorized modification; Allows disruption of service

References to Advisories, Solutions, and Tools

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Hyperlink Resource Type Source Name
http://downloads.digium.com/pub/security/AST-2017-010.html Vendor Advisory External Source CONFIRM http://downloads.digium.com/pub/security/AST-2017-010.html
http://www.securityfocus.com/bid/101760 Third Party Advisory; VDB Entry External Source BID 101760
https://issues.asterisk.org/jira/browse/ASTERISK-27337 Issue Tracking; Vendor Advisory External Source CONFIRM https://issues.asterisk.org/jira/browse/ASTERISK-27337
https://www.debian.org/security/2017/dsa-4076 External Source DEBIAN DSA-4076

Technical Details

Vulnerability Type (View All)

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