5.9
MEDIUM
CVE-2017-16672
Asterisk Memory Leak Vulnerability
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.

INFO

Published Date :

Nov. 9, 2017, 12:29 a.m.

Last Modified :

Nov. 21, 2024, 3:16 a.m.

Remotely Exploitable :

Yes !

Impact Score :

3.6

Exploitability Score :

2.2
Affected Products

The following products are affected by CVE-2017-16672 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

ID Vendor Product Action
1 Digium asterisk
2 Digium certified_asterisk
References to Advisories, Solutions, and Tools

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2017-16672 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2017-16672 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.

  • CVE Modified by af854a3a-2127-422b-91ae-364da2661108

    Nov. 21, 2024

    Action Type Old Value New Value
    Added Reference http://downloads.digium.com/pub/security/AST-2017-011.html
    Added Reference http://www.securityfocus.com/bid/101765
    Added Reference https://issues.asterisk.org/jira/browse/ASTERISK-27345
    Added Reference https://security.gentoo.org/glsa/201811-11
    Added Reference https://www.debian.org/security/2017/dsa-4076
  • CVE Modified by [email protected]

    May. 14, 2024

    Action Type Old Value New Value
  • CWE Remap by [email protected]

    Oct. 03, 2019

    Action Type Old Value New Value
    Changed CWE CWE-119 CWE-772
  • CVE Modified by [email protected]

    Nov. 25, 2018

    Action Type Old Value New Value
    Added Reference https://security.gentoo.org/glsa/201811-11 [No Types Assigned]
  • CVE Modified by [email protected]

    Jan. 01, 2018

    Action Type Old Value New Value
    Added Reference https://www.debian.org/security/2017/dsa-4076 [No Types Assigned]
  • Initial Analysis by [email protected]

    Dec. 04, 2017

    Action Type Old Value New Value
    Added CVSS V2 (AV:N/AC:M/Au:N/C:N/I:N/A:P)
    Added CVSS V3 AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
    Changed Reference Type http://www.securityfocus.com/bid/101765 No Types Assigned http://www.securityfocus.com/bid/101765 Third Party Advisory, VDB Entry
    Changed Reference Type http://downloads.digium.com/pub/security/AST-2017-011.html No Types Assigned http://downloads.digium.com/pub/security/AST-2017-011.html Vendor Advisory
    Changed Reference Type https://issues.asterisk.org/jira/browse/ASTERISK-27345 No Types Assigned https://issues.asterisk.org/jira/browse/ASTERISK-27345 Vendor Advisory
    Added CWE CWE-119
    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 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: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:*:*:*:*:*:*
  • CVE Modified by [email protected]

    Nov. 12, 2017

    Action Type Old Value New Value
    Added Reference http://www.securityfocus.com/bid/101765 [No Types Assigned]
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2017-16672 is associated with the following CWEs:

Common Attack Pattern Enumeration and Classification (CAPEC)

Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2017-16672 weaknesses.

Exploit Prediction

EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.

9.08 }} 6.99%

score

0.94631

percentile

CVSS30 - Vulnerability Scoring System
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability