high
7.5
CWE
400
Advisory Published
Updated

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

First published: Tue Feb 28 2023(Updated: )

Golang Go is vulnerable to a denial of service, caused by a flaw when processing large TLS handshake records. By sending specially-crafted TLS handshake records, a remote authenticated attacker could exploit this vulnerability to cause a denial of service condition.

Credit: security@golang.org security@golang.org security@golang.org

Affected SoftwareAffected VersionHow to fix
Golang Go<1.19.6
Golang Go=1.20.0
Golang Go=1.20.0-rc1
Golang Go=1.20.0-rc2
Golang Go=1.20.0-rc3
redhat/golang<1.20.1
1.20.1
redhat/golang<1.19.6
1.19.6
debian/golang-1.15<=1.15.15-1~deb11u4
debian/golang-1.19
1.19.8-2
IBM Concert Software<=1.0.0 - 1.0.1

Remedy

https://go.dev/cl/468125

Remedy

https://go.dev/issue/58001

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Reference Links

Parent vulnerabilities

(Appears in the following advisories)

Frequently Asked Questions

  • What is the severity of CVE-2022-41724?

    The severity of CVE-2022-41724 is high, with a severity value of 7.5.

  • How does CVE-2022-41724 affect clients?

    CVE-2022-41724 affects all TLS 1.3 clients and TLS 1.2 clients which explicitly enable session resumption, causing panics when attempting to construct responses.

  • How does CVE-2022-41724 affect servers?

    CVE-2022-41724 affects servers when large TLS handshake records are sent by clients, causing servers to panic when attempting to construct responses.

  • Which versions of Golang are affected by CVE-2022-41724?

    Versions 1.19.6 and 1.20.0 of Golang are affected by CVE-2022-41724.

  • Is there a remedy available for CVE-2022-41724?

    Yes, for Golang versions affected by CVE-2022-41724, upgrading to version 1.19.6 or 1.20.1 will address the vulnerability.

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