CVE-2020-24613
Published: 24 August 2020
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.
Priority
Status
| Package | Release | Status |
|---|---|---|
|
wolfssl Launchpad, Ubuntu, Debian |
bionic |
Needs triage
|
| focal |
Needs triage
|
|
| groovy |
Not vulnerable
(4.5.0+dfsg-2)
|
|
| hirsute |
Not vulnerable
(4.5.0+dfsg-2)
|
|
| impish |
Not vulnerable
(4.5.0+dfsg-2)
|
|
| jammy |
Not vulnerable
(4.5.0+dfsg-2)
|
|
| kinetic |
Not vulnerable
(4.5.0+dfsg-2)
|
|
| lunar |
Not vulnerable
(4.5.0+dfsg-2)
|
|
| mantic |
Not vulnerable
(4.5.0+dfsg-2)
|
|
| trusty |
Does not exist
|
|
| upstream |
Needs triage
|
|
| xenial |
Needs triage
|
Severity score breakdown
| Parameter | Value |
|---|---|
| Base score | 6.8 |
| Attack vector | Network |
| Attack complexity | High |
| Privileges required | Low |
| User interaction | None |
| Scope | Unchanged |
| Confidentiality | High |
| Integrity impact | High |
| Availability impact | None |
| Vector | CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N |