PT-2021-23889 · Linphone+1 · Linphone+1

Published 2021-11-12 · Updated 2021-11-16 · CVE-2021-43610

Positive Technologies (AI Summary)

CVSS v3.1

7.5

High

Base vector

AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Name of the Vulnerable Software and Affected Versions: Belle-sip versions prior to 5.0.20

Description: The issue can cause applications such as Linphone to crash when receiving an unauthenticated SIP message with an invalid From header, specifically a request URI without a parameter.

Recommendations: For versions prior to 5.0.20, update to version 5.0.20 or later to resolve the issue.

Fix

HTTP Request/Response Smuggling

Weakness Enumeration

CWE-444

Related Identifiers

CVE-2021-43610

Affected Products

Belle-Sip

Linphone

References · 5

• https://github.com/BelledonneCommunications/belle-sip/commit/d3f0651531e45e91c2e60f3a16a8b612802e5d2d · Patch
• https://github.com/BelledonneCommunications/belle-sip/compare/5.0.18...5.0.20 · Patch
• https://osv.dev/vulnerability/CVE-2021-43610 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2021-43610 · Security Note
• https://t.me/cibsecurity/32337 · Telegram Post