CVE-2021-44718: 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…

PriorityP427medium5.9CVSS 3.1

AVNACHPRNUINSUCNINAH

EPSS

0.63%

46.7th percentile

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.

Affected

6 ranges

Vendor	Product	Version range	Fixed in
debian	wolfssl	< wolfssl 5.1.1-1 (bookworm)	wolfssl 5.1.1-1 (bookworm)
wolfssl	wolfssl	<= 5.0.0	—
wolfssl	wolfssl	>= 0 < 4.6.0+p1-0+deb11u1	4.6.0+p1-0+deb11u1
wolfssl	wolfssl	>= 0 < 5.1.1-1	5.1.1-1
wolfssl	wolfssl	>= 0 < 5.1.1-1	5.1.1-1
wolfssl	wolfssl	>= 0 < 5.1.1-1	5.1.1-1

CVSS provenance

nvdv3.15.9MEDIUMCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H

osv5.9MEDIUM

vendor_debian5.9MEDIUM

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