CVE-2021-34558

The crypto/tls package of Go through 1.16.5 does not properly assert that the type of public key in an X.509 certificate matches the expected type when doing a RSA based key exchange, allowing a malicious TLS server to cause a TLS client to panic.

CVSS v3.1

6.5 MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

CVSS v2.0

2.6 LOWAV:N/AC:H/Au:N/C:N/I:N/A:P

EPSS

6.98% chance of exploitation in the next 30 days, 94th percentile

Published

2021-07-15

Updated

2024-08-04

Proof-of-concept exploits (1)

• alexzorin/cve-2021-3455845★ · 2021-07-13

References

• CVE Record
• NVD entry

Related

• CVE-2017-2636
• CVE-2018-16875
• CVE-2021-34555
• CVE-2021-3456
• CVE-2021-34546
• CVE-2021-34593