National Vulnerability Database

National Vulnerability Database

National Vulnerability
Database

CVE-2017-16672 Detail

Current Description

An 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. A memory leak occurs when an Asterisk pjsip session object is created and that call gets rejected before the session itself is fully established. When this happens the session object never gets destroyed. Eventually Asterisk can run out of memory and crash.

Source:  MITRE
View Analysis Description

Impact

CVSS v3.0 Severity and Metrics:

Base Score: 5.9 MEDIUM
Vector: AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H (V3 legend)
Impact Score: 3.6
Exploitability Score: 2.2


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

CVSS v2.0 Severity and Metrics:

Base Score: 4.3 MEDIUM
Vector: (AV:N/AC:M/Au:N/C:N/I:N/A:P) (V2 legend)
Impact Subscore: 2.9
Exploitability Subscore: 8.6


Access Vector (AV): Network
Access Complexity (AC): Medium
Authentication (AU): None
Confidentiality (C): None
Integrity (I): None
Availability (A): Partial
Additional Information:
Allows disruption of service

References to Advisories, Solutions, and Tools

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Hyperlink Resource
http://downloads.digium.com/pub/security/AST-2017-011.html Vendor Advisory
http://www.securityfocus.com/bid/101765 Third Party Advisory VDB Entry
https://issues.asterisk.org/jira/browse/ASTERISK-27345 Vendor Advisory
https://security.gentoo.org/glsa/201811-11
https://www.debian.org/security/2017/dsa-4076

Technical Details

Vulnerability Type (View All)

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

Configuration 2 ( hide )
 cpe:2.3:a:digium:certified_asterisk:13.13.0:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:digium:certified_asterisk:13.13.0:cert1:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:digium:certified_asterisk:13.13.0:cert1_rc1:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:digium:certified_asterisk:13.13.0:cert1_rc2:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:digium:certified_asterisk:13.13.0:cert1_rc3:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:digium:certified_asterisk:13.13.0:cert1_rc4:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:digium:certified_asterisk:13.13.0:cert2:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:digium:certified_asterisk:13.13.0:cert3:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:digium:certified_asterisk:13.13.0:cert4:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:digium:certified_asterisk:13.13.0:cert5:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:digium:certified_asterisk:13.13.0:cert6:*:*:*:*:*:*
     Show Matching CPE(s)


Change History

4 change records found - show changes

Quick Info

CVE Dictionary Entry:
CVE-2017-16672
NVD Published Date:
11/08/2017
NVD Last Modified:
11/25/2018