CVE-2021-37706
PJSIP STUN Integer Underflow Remote Code Execution Vulnerability
Description
PJSIP is a free and open source multimedia communication library written in C language implementing standard based protocols such as SIP, SDP, RTP, STUN, TURN, and ICE. In affected versions if the incoming STUN message contains an ERROR-CODE attribute, the header length is not checked before performing a subtraction operation, potentially resulting in an integer underflow scenario. This issue affects all users that use STUN. A malicious actor located within the victim’s network may forge and send a specially crafted UDP (STUN) message that could remotely execute arbitrary code on the victim’s machine. Users are advised to upgrade as soon as possible. There are no known workarounds.
INFO
Published Date :
Dec. 22, 2021, 6:15 p.m.
Last Modified :
Aug. 30, 2023, 1:15 a.m.
Source :
[email protected]
Remotely Exploitable :
Yes !
Impact Score :
5.9
Exploitability Score :
3.9
Affected Products
The following products are affected by CVE-2021-37706
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-2021-37706.
| URL | Resource |
|---|---|
| http://packetstormsecurity.com/files/166225/Asterisk-Project-Security-Advisory-AST-2022-004.html | Third Party Advisory VDB Entry |
| http://seclists.org/fulldisclosure/2022/Mar/0 | Mailing List Patch Third Party Advisory |
| https://github.com/pjsip/pjproject/commit/15663e3f37091069b8c98a7fce680dc04bc8e865 | Patch Third Party Advisory |
| https://github.com/pjsip/pjproject/security/advisories/GHSA-2qpg-f6wf-w984 | Patch Third Party Advisory |
| https://lists.debian.org/debian-lts-announce/2022/03/msg00035.html | Mailing List Third Party Advisory |
| https://lists.debian.org/debian-lts-announce/2022/11/msg00021.html | Mailing List Third Party Advisory |
| https://lists.debian.org/debian-lts-announce/2023/08/msg00038.html | |
| https://security.gentoo.org/glsa/202210-37 | Third Party Advisory |
| https://www.debian.org/security/2022/dsa-5285 | 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-2021-37706 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2021-37706 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 -
CVE Modified by [email protected]
Aug. 30, 2023
Action Type Old Value New Value Added Reference https://lists.debian.org/debian-lts-announce/2023/08/msg00038.html [No Types Assigned] -
Modified Analysis by [email protected]
Feb. 02, 2023
Action Type Old Value New Value Changed Reference Type https://lists.debian.org/debian-lts-announce/2022/11/msg00021.html No Types Assigned https://lists.debian.org/debian-lts-announce/2022/11/msg00021.html Mailing List, Third Party Advisory Changed Reference Type https://www.debian.org/security/2022/dsa-5285 No Types Assigned https://www.debian.org/security/2022/dsa-5285 Third Party Advisory Changed CPE Configuration OR *cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:* OR *cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:* *cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:* -
CVE Modified by [email protected]
Nov. 18, 2022
Action Type Old Value New Value Added Reference https://www.debian.org/security/2022/dsa-5285 [No Types Assigned] -
CVE Modified by [email protected]
Nov. 17, 2022
Action Type Old Value New Value Added Reference https://lists.debian.org/debian-lts-announce/2022/11/msg00021.html [No Types Assigned] -
Modified Analysis by [email protected]
Nov. 16, 2022
Action Type Old Value New Value Changed Reference Type http://packetstormsecurity.com/files/166225/Asterisk-Project-Security-Advisory-AST-2022-004.html Third Party Advisory http://packetstormsecurity.com/files/166225/Asterisk-Project-Security-Advisory-AST-2022-004.html Third Party Advisory, VDB Entry Changed Reference Type https://lists.debian.org/debian-lts-announce/2022/03/msg00035.html Third Party Advisory https://lists.debian.org/debian-lts-announce/2022/03/msg00035.html Mailing List, Third Party Advisory Changed Reference Type https://security.gentoo.org/glsa/202210-37 No Types Assigned https://security.gentoo.org/glsa/202210-37 Third Party Advisory Added CWE NIST CWE-191 -
CVE Modified by [email protected]
Oct. 31, 2022
Action Type Old Value New Value Added Reference https://security.gentoo.org/glsa/202210-37 [No Types Assigned] -
Modified Analysis by [email protected]
Apr. 25, 2022
Action Type Old Value New Value Changed Reference Type http://packetstormsecurity.com/files/166225/Asterisk-Project-Security-Advisory-AST-2022-004.html No Types Assigned http://packetstormsecurity.com/files/166225/Asterisk-Project-Security-Advisory-AST-2022-004.html Third Party Advisory Changed Reference Type http://seclists.org/fulldisclosure/2022/Mar/0 No Types Assigned http://seclists.org/fulldisclosure/2022/Mar/0 Mailing List, Patch, Third Party Advisory Changed Reference Type https://lists.debian.org/debian-lts-announce/2022/03/msg00035.html No Types Assigned https://lists.debian.org/debian-lts-announce/2022/03/msg00035.html Third Party Advisory Added CPE Configuration OR *cpe:2.3:a:asterisk:certified_asterisk:*:*:*:*:*:*:*:* versions up to (excluding) 16.8.0 *cpe:2.3:a:asterisk:certified_asterisk:16.8.0:*:*:*:*:*:*:* *cpe:2.3:a:asterisk:certified_asterisk:16.8.0:cert1:*:*:*:*:*:* *cpe:2.3:a:asterisk:certified_asterisk:16.8.0:cert10:*:*:*:*:*:* *cpe:2.3:a:asterisk:certified_asterisk:16.8.0:cert11:*:*:*:*:*:* *cpe:2.3:a:asterisk:certified_asterisk:16.8.0:cert12:*:*:*:*:*:* *cpe:2.3:a:asterisk:certified_asterisk:16.8.0:cert2:*:*:*:*:*:* *cpe:2.3:a:asterisk:certified_asterisk:16.8.0:cert3:*:*:*:*:*:* *cpe:2.3:a:asterisk:certified_asterisk:16.8.0:cert4:*:*:*:*:*:* *cpe:2.3:a:asterisk:certified_asterisk:16.8.0:cert5:*:*:*:*:*:* *cpe:2.3:a:asterisk:certified_asterisk:16.8.0:cert6:*:*:*:*:*:* *cpe:2.3:a:asterisk:certified_asterisk:16.8.0:cert7:*:*:*:*:*:* *cpe:2.3:a:asterisk:certified_asterisk:16.8.0:cert8:*:*:*:*:*:* *cpe:2.3:a:asterisk:certified_asterisk:16.8.0:cert9:*:*:*:*:*:* *cpe:2.3:a:sangoma:asterisk:*:*:*:*:*:*:*:* versions from (including) 16.0.0 up to (excluding) 16.24.1 *cpe:2.3:a:sangoma:asterisk:*:*:*:*:*:*:*:* versions from (including) 18.0.0 up to (excluding) 18.10.1 *cpe:2.3:a:sangoma:asterisk:*:*:*:*:*:*:*:* versions from (including) 19.0.0 up to (excluding) 19.2.1 Added CPE Configuration OR *cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:* -
CVE Modified by [email protected]
Mar. 28, 2022
Action Type Old Value New Value Added Reference https://lists.debian.org/debian-lts-announce/2022/03/msg00035.html [No Types Assigned] -
CVE Modified by [email protected]
Mar. 10, 2022
Action Type Old Value New Value Added Reference http://packetstormsecurity.com/files/166225/Asterisk-Project-Security-Advisory-AST-2022-004.html [No Types Assigned] -
CVE Modified by [email protected]
Mar. 04, 2022
Action Type Old Value New Value Added Reference http://seclists.org/fulldisclosure/2022/Mar/0 [No Types Assigned] -
Initial Analysis by [email protected]
Jan. 03, 2022
Action Type Old Value New Value Added CVSS V2 NIST (AV:N/AC:M/Au:N/C:C/I:C/A:C) Added CVSS V3.1 NIST AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H Changed Reference Type https://github.com/pjsip/pjproject/commit/15663e3f37091069b8c98a7fce680dc04bc8e865 No Types Assigned https://github.com/pjsip/pjproject/commit/15663e3f37091069b8c98a7fce680dc04bc8e865 Patch, Third Party Advisory Changed Reference Type https://github.com/pjsip/pjproject/security/advisories/GHSA-2qpg-f6wf-w984 No Types Assigned https://github.com/pjsip/pjproject/security/advisories/GHSA-2qpg-f6wf-w984 Patch, Third Party Advisory Added CPE Configuration OR *cpe:2.3:a:teluu:pjsip:*:*:*:*:*:*:*:* versions up to (including) 2.11.1
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2021-37706 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-2021-37706
weaknesses.
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
2.16 }} -0.05%
score
0.89570
percentile