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CRITICAL · 9.8

CVE-2021-43303

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 overfl...

Vulnerability Description

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

CVSS Score

9.8

CRITICAL

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH

Affected Products

VendorProductVersions
TeluuPjsip<= 2.11.1
DebianDebian Linux9.0

Related Weaknesses (CWE)

CWE-120

References

FAQ

What is CVE-2021-43303?

CVE-2021-43303 is a vulnerability with a CVSS score of 9.8 (CRITICAL). 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 overfl...

How severe is CVE-2021-43303?

CVE-2021-43303 has been rated CRITICAL with a CVSS base score of 9.8/10. This is considered a critical vulnerability requiring immediate attention.

Is there a patch for CVE-2021-43303?

Check the references section above for vendor advisories and patch information. Affected products include: Teluu Pjsip, Debian Debian Linux.