CVE-2021-43303: Debian Linux

Critical severity, CVSS 9.8. EPSS: 2.4% chance of exploitation in the next 30 days.

Buffer overflow in PJSUA API when calling pjsua_call_dump. An attacker-controlled 'buffer' argument may cause a buffer overflow, since supplying an output buffer smaller than 128 characters may overflow the output buffer, regardless of the 'maxlen' argument supplied

Affected products

• Debian Debian Linux: version 9.0 only; version 10.0 only; version 11.0 only
• Teluu Pjsip: up to and including 2.11.1

Published 2022-02-16. Last modified 2026-06-17.