Panic on large handshake records in crypto/tls
CVE-2022-41724

7.5HIGH

Key Information:

Vendor

Go Standard Library

Status
Crypto/tls
Vendor
CVE Published:
28 February 2023

What is CVE-2022-41724?

The vulnerability arises when large TLS handshake records are sent, potentially causing panic in both clients and servers. Specifically, this issue impacts all TLS 1.3 clients and those TLS 1.2 clients that have session resumption enabled. Furthermore, TLS 1.3 servers that request client certificates are also affected. The improper handling of the handshake records can lead to crashes, disrupting secure communications and creating security risks. Developers are advised to apply the latest security updates to mitigate this issue.

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Affected Version(s)

crypto/tls 0 < 1.19.6

crypto/tls 1.20.0-0 < 1.20.1

References

https://go.dev/issue/58001
https://go.dev/cl/468125
https://groups.google.com/g/golang-announce/c/V0aBFqaFs_E

CVSS V3.1

Score:
7.5
Severity:
HIGH
Confidentiality:
None
Integrity:
None
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

Marten Seemann
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