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Threat

CVE-2021-33056

A NULL pointer dereference vulnerability exists in eXcall_api.c in Antisip eXosip2 through 5.2.0 when handling certain 3xx redirect responses.

Read more: "Crashing SIP Clients with a Single Slash"

Read more: "Exploiting URL Parsing Confusion"

Risk Information

CVE ID

CVE-2021-33056

Vendor

Belledonne Communications

Product

Belle-sip

CVSS v3

N/A


Disclosure Policy

Team82 is committed to privately reporting vulnerabilities to affected vendors in a coordinated, timely manner in order to ensure the safety of the cybersecurity ecosystem worldwide. To engage with the vendor and research community, Team82 invites you to download and share our Coordinated Disclosure Policy. Team82 will adhere to this reporting and disclosure process when we discover vulnerabilities in products and services.

Public Email & PGP Key

Team82 has also made its public PGP Key available for the vendor and research community to securely and safely exchange vulnerability and research information with us.

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