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CVE-2021-44718

Published: 2 September 2022

wolfSSL through 5.0.0 allows an attacker to cause a denial of service and infinite loop in the client component by sending crafted traffic from a Machine-in-the-Middle (MITM) position. The root cause is that the client module accepts TLS messages that normally are only sent to TLS servers.

Priority

Low

Cvss 3 Severity Score

5.9

Score breakdown

Status

Package Release Status
wolfssl
Launchpad, Ubuntu, Debian
xenial Needs triage

bionic Needs triage

focal Needs triage

trusty Ignored
(end of standard support)
upstream
Released (5.1.1-1)
impish Ignored
(end of life)
kinetic Ignored
(end of life, was needs-triage)
jammy Needs triage

lunar Not vulnerable
(5.2.0-2)
mantic Not vulnerable
(5.2.0-2)

Severity score breakdown

Parameter Value
Base score 5.9
Attack vector Network
Attack complexity High
Privileges required None
User interaction None
Scope Unchanged
Confidentiality None
Integrity impact None
Availability impact High
Vector CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H