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

published August 24, 2020

CVSS
—
EPSS
1%
Percentile
58.1
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS
Not scored
CVSS v4.0
Not supplied
EPSS
0.00861 · 58.1th percentile
Published
2020-08-24T21:06Z
EPSS history
Timeline
  • 24 AUG 21:06Z
    wolfSSL before 4.5.0 mishandles TLS 1.3 server data in the WAIT_CERT_CR state, within SanityCheckTls13MsgReceived() in tls13.c
    cvelistv5