Inconsistent interpretation of HTTP requests in belle-sip - CVE-2021-33056

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Main Vulnerability Database Vulnerabilities #VU59526

Inconsistent interpretation of HTTP requests in belle-sip - CVE-2021-33056

Published: January 12, 2022


Vulnerability identifier: #VU59526
CSH Severity: Medium
CVSSv4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2021-33056
CWE-ID: CWE-444
Exploitation vector: Remote access
Exploit availability: No public exploit available
Vulnerable software:
belle-sip
Software vendor:
Belledonne Communications

Description

The vulnerability allows a remote attacker to preform a denial of service (DoS) attack.

The vulnerability exists due to improper validation of HTTP requests within an invalid From header in a SIP message. A remote attacker can send a specially crafted HTTP request and cause a denial of service condition on the target system.


Remediation

Install updates from vendor's website.

External links