CVE-2017-16671 Detail
Modified
This vulnerability has been modified since it was last analyzed by the NVD. It is awaiting reanalysis which may result in further changes to the information provided.
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
View Analysis Description
Analysis 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
Impact
CVSS v3.0 Severity and Metrics:
Base Score:
8.8 HIGH
Vector:
AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
(V3 legend)
Impact Score:
5.9
Exploitability Score:
2.8
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 v2.0 Severity and Metrics:
Base Score:
6.5 MEDIUM
Vector:
(AV:N/AC:L/Au:S/C:P/I:P/A:P)
(V2 legend)
Impact Subscore:
6.4
Exploitability Subscore:
8.0
Access Vector (AV):
Network
Access Complexity (AC):
Low
Authentication (AU):
Single
Confidentiality (C):
Partial
Integrity (I):
Partial
Availability (A):
Partial
Additional Information:
Allows unauthorized disclosure of information
Allows unauthorized modification
Allows disruption of service
References to Advisories, Solutions, and Tools
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Known Affected Software Configurations
Switch to CPE 2.2
Configuration 1 ( hide ) cpe:2.3:a:digium:asterisk:*:*:*:*:*:*:*:*
Show Matching CPE(s)
|
From (including)
13.0.0 | Up to (excluding)
13.18.1 | cpe:2.3:a:digium:asterisk:*:*:*:*:*:*:*:*
Show Matching CPE(s)
|
From (including)
14.0.0 | Up to (excluding)
14.7.1 | cpe:2.3:a:digium:asterisk:*:*:*:*:*:*:*:*
Show Matching CPE(s)
|
From (including)
15.0.0 | Up to (excluding)
15.1.1 |
( hide )
Change History
4 change records found
- show changes
CVE Modified by MITRE -
11/25/2018 6:29:00 AM
| Action |
Type |
Old Value |
New Value |
| Added |
Reference |
|
https://security.gentoo.org/glsa/201811-11 [No Types Assigned] |
CVE Modified by MITRE -
12/31/2017 9:29:00 PM
| Action |
Type |
Old Value |
New Value |
| Added |
Reference |
|
https://www.debian.org/security/2017/dsa-4076 [No Types Assigned] |
Initial Analysis -
12/4/2017 2:28:13 PM
| Action |
Type |
Old Value |
New Value |
| Added |
CPE Configuration |
|
OR
*cpe:2.3:a:digium:asterisk:*:*:*:*:*:*:*:* versions from (including) 13.0.0 up to (excluding) 13.18.1
*cpe:2.3:a:digium:asterisk:*:*:*:*:*:*:*:* versions from (including) 14.0.0 up to (excluding) 14.7.1
*cpe:2.3:a:digium:asterisk:*:*:*:*:*:*:*:* versions from (including) 15.0.0 up to (excluding) 15.1.1 |
| Added |
CPE Configuration |
|
Record truncated, showing 500 of 762 characters.
View Entire Change Record
OR
*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 |
| Added |
CVSS V2 |
|
(AV:N/AC:L/Au:S/C:P/I:P/A:P) |
| Added |
CVSS V3 |
|
AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
| Added |
CWE |
|
CWE-119 |
| Changed |
Reference Type |
http://downloads.digium.com/pub/security/AST-2017-010.html No Types Assigned |
http://downloads.digium.com/pub/security/AST-2017-010.html Vendor Advisory |
| Changed |
Reference Type |
http://www.securityfocus.com/bid/101760 No Types Assigned |
http://www.securityfocus.com/bid/101760 Third Party Advisory, VDB Entry |
| Changed |
Reference Type |
https://issues.asterisk.org/jira/browse/ASTERISK-27337 No Types Assigned |
https://issues.asterisk.org/jira/browse/ASTERISK-27337 Issue Tracking, Vendor Advisory |
CVE Modified by MITRE -
11/11/2017 9:29:01 PM
| Action |
Type |
Old Value |
New Value |
| Added |
Reference |
|
http://www.securityfocus.com/bid/101760 [No Types Assigned] |
Quick Info
CVE Dictionary Entry:
CVE-2017-16671
NVD Published Date:
11/08/2017
NVD Last Modified:
11/25/2018
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