CVE-2020-24613

published 2020-08-24

CVE-2020-24613: wolfSSL before 4.5.0 mishandles TLS 1.3 server data in the WAIT_CERT_CR state, within SanityCheckTls13MsgReceived() in tls13.c. This is an incorrect…

Priority P3 36 medium 6.8 CVSS 3.1

AV N AC H PR L UI N S U C H I H A N

wolfSSL before 4.5.0 mishandles TLS 1.3 server data in the WAIT_CERT_CR state, within SanityCheckTls13MsgReceived() in tls13.c. This is an incorrect implementation of the TLS 1.3 client state machine. This allows attackers in a privileged network position to completely impersonate any TLS 1.3 servers, and read or modify potentially sensitive information between clients using the wolfSSL library and these TLS servers.

Affected

6 ranges

Vendor	Product	Version range	Fixed in
debian	wolfssl	< wolfssl 4.5.0+dfsg-1 (bookworm)	wolfssl 4.5.0+dfsg-1 (bookworm)
wolfssl	wolfssl	< 4.5.0	4.5.0
wolfssl	wolfssl	>= 0 < 4.5.0+dfsg-1	4.5.0+dfsg-1
wolfssl	wolfssl	>= 0 < 4.5.0+dfsg-1	4.5.0+dfsg-1
wolfssl	wolfssl	>= 0 < 4.5.0+dfsg-1	4.5.0+dfsg-1
wolfssl	wolfssl	>= 0 < 4.5.0+dfsg-1	4.5.0+dfsg-1

CVSS provenance

nvd v3.1 6.8 MEDIUM CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N

nvd v2.0 4.9 MEDIUM AV:N/AC:M/Au:S/C:P/I:P/A:N

osv 6.8 MEDIUM

vendor_debian 6.8 MEDIUM

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CWE-295