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National Vulnerability Database

National Vulnerability Database

NVD

National Vulnerability Database
  1. Vulnerabilities

CVE-2021-26713 Detail

Description

A stack-based buffer overflow in res_rtp_asterisk.c in Sangoma Asterisk before 16.16.1, 17.x before 17.9.2, and 18.x before 18.2.1 and Certified Asterisk before 16.8-cert6 allows an authenticated WebRTC client to cause an Asterisk crash by sending multiple hold/unhold requests in quick succession. This is caused by a signedness comparison mismatch.


Metrics

 
NVD enrichment efforts reference publicly available information to associate vector strings. CVSS information contributed by other sources is also displayed.
CVSS 4.0 Severity and Vector Strings:

NIST CVSS score
NIST: NVD
N/A
NVD assessment not yet provided.

References to Advisories, Solutions, and Tools

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Hyperlink Resource
https://downloads.asterisk.org/pub/security/ Vendor Advisory 
https://downloads.asterisk.org/pub/security/ Vendor Advisory 
https://downloads.asterisk.org/pub/security/AST-2021-004.html Vendor Advisory 
https://downloads.asterisk.org/pub/security/AST-2021-004.html Vendor Advisory 
https://issues.asterisk.org/jira/browse/ASTERISK-29205 Vendor Advisory 
https://issues.asterisk.org/jira/browse/ASTERISK-29205 Vendor Advisory 

Weakness Enumeration

CWE-ID CWE Name Source
CWE-787 Out-of-bounds Write cwe source acceptance level NIST  

Known Affected Software Configurations Switch to CPE 2.2

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Change History

3 change records found show changes

Quick Info

CVE Dictionary Entry:
CVE-2021-26713
NVD Published Date:
02/19/2021
NVD Last Modified:
11/21/2024
Source:
MITRE