CVE-2019-18976
Sangoma Asterisk NULL Pointer Dereferenceдяки Voice Processing
Description
An issue was discovered in res_pjsip_t38.c in Sangoma Asterisk through 13.x and Certified Asterisk through 13.21-x. If it receives a re-invite initiating T.38 faxing and has a port of 0 and no c line in the SDP, a NULL pointer dereference and crash will occur. This is different from CVE-2019-18940.
INFO
Published Date :
Nov. 22, 2019, 5:15 p.m.
Last Modified :
June 3, 2022, 2:41 p.m.
Source :
[email protected]
Remotely Exploitable :
Yes !
Impact Score :
3.6
Exploitability Score :
3.9
Affected Products
The following products are affected by CVE-2019-18976
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.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2019-18976.
| URL | Resource |
|---|---|
| http://downloads.asterisk.org/pub/security/AST-2019-008.html | Vendor Advisory |
| https://lists.debian.org/debian-lts-announce/2022/04/msg00001.html | Mailing List Third Party Advisory |
| https://packetstormsecurity.com/files/155436/Asterisk-Project-Security-Advisory-AST-2019-008.html | Third Party Advisory VDB Entry |
| https://seclists.org/fulldisclosure/2019/Nov/20 | Mailing List Third Party Advisory |
| https://www.asterisk.org/downloads/security-advisories | Vendor Advisory |
| https://www.cybersecurity-help.cz/vdb/SB2019112218?affChecked=1 | Third Party Advisory |
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-2019-18976 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2019-18976 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 [email protected]
May. 14, 2024
Action Type Old Value New Value -
Modified Analysis by [email protected]
Jun. 03, 2022
Action Type Old Value New Value Changed Reference Type https://lists.debian.org/debian-lts-announce/2022/04/msg00001.html No Types Assigned https://lists.debian.org/debian-lts-announce/2022/04/msg00001.html Mailing List, Third Party Advisory Added CPE Configuration OR *cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:* -
CVE Modified by [email protected]
Apr. 03, 2022
Action Type Old Value New Value Added Reference https://lists.debian.org/debian-lts-announce/2022/04/msg00001.html [No Types Assigned] -
Initial Analysis by [email protected]
Dec. 10, 2019
Action Type Old Value New Value Added CVSS V2 NIST (AV:N/AC:L/Au:N/C:N/I:N/A:P) Added CVSS V3.1 NIST AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Changed Reference Type http://downloads.asterisk.org/pub/security/AST-2019-008.html No Types Assigned http://downloads.asterisk.org/pub/security/AST-2019-008.html Vendor Advisory Changed Reference Type https://packetstormsecurity.com/files/155436/Asterisk-Project-Security-Advisory-AST-2019-008.html No Types Assigned https://packetstormsecurity.com/files/155436/Asterisk-Project-Security-Advisory-AST-2019-008.html Third Party Advisory, VDB Entry Changed Reference Type https://seclists.org/fulldisclosure/2019/Nov/20 No Types Assigned https://seclists.org/fulldisclosure/2019/Nov/20 Mailing List, Third Party Advisory Changed Reference Type https://www.asterisk.org/downloads/security-advisories No Types Assigned https://www.asterisk.org/downloads/security-advisories Vendor Advisory Changed Reference Type https://www.cybersecurity-help.cz/vdb/SB2019112218?affChecked=1 No Types Assigned https://www.cybersecurity-help.cz/vdb/SB2019112218?affChecked=1 Third Party Advisory Added CWE NIST CWE-476 Added CPE Configuration OR *cpe:2.3:a:digium:asterisk:*:*:*:*:*:*:*:* versions from (including) 13.0.0 up to (including) 13.29.1 *cpe:2.3:a:digium:certified_asterisk:13.21:*:*:*:*:*:*:* *cpe:2.3:a:digium:certified_asterisk:13.21:cert1:*:*:*:*:*:* *cpe:2.3:a:digium:certified_asterisk:13.21:cert2:*:*:*:*:*:* *cpe:2.3:a:digium:certified_asterisk:13.21:cert3:*:*:*:*:*:* *cpe:2.3:a:digium:certified_asterisk:13.21:cert4:*:*:*:*:*:*
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2019-18976 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-2019-18976
weaknesses.
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
6.20 }} -0.29%
score
0.93471
percentile