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GO-2023-1570

Published Feb 16, 2023·Last modified Feb 4, 2026
Affected Components(0)

No affected components available

Description

Large handshake records may cause panics in crypto/tls.

Both clients and servers may send large TLS handshake records which cause servers and clients, respectively, to panic when attempting to construct responses.

This affects all TLS 1.3 clients, TLS 1.2 clients which explicitly enable session resumption (by setting Config.ClientSessionCache to a non-nil value), and TLS 1.3 servers which request client certificates (by setting Config.ClientAuth >= RequestClientCert).

Risk Scores
Base Score
0.0

Measures severity based on intrinsic characteristics of the vulnerability, independent of environment.

Threat Intelligence
0.0

No exploitation activity has been observed at this time. Continue routine monitoring.

EPSS
1.11%

The exploit probability is very low. The vulnerability is unlikely to be exploited in the next 30 days.

Exploit
Not available

We did not find any exploit available. Neither in GitHub repositories nor in the Exploit-Database.

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