medium
6.5
CWE
436 113
Advisory Published
Updated

CVE-2023-29406: Insufficient sanitization of Host header in net/http

First published: Tue Jul 11 2023(Updated: )

Golang Go is vulnerable to HTTP header injection, caused by improper contents validation of Host header by the HTTP/1 client. By persuading a victim to visit a specially crafted Web page, a remote attacker could exploit this vulnerability to inject arbitrary HTTP headers, which will allow the attacker to conduct various attacks against the vulnerable system, including cross-site scripting, cache poisoning or session hijacking.

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

Affected SoftwareAffected VersionHow to fix
Golang Go>=1.20.0<1.20.6
Golang Go<1.19.11
redhat/golang<1.19.11
1.19.11
redhat/golang<1.20.6
1.20.6
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/506996

Remedy

https://go.dev/issue/60374

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Reference Links

Parent vulnerabilities

(Appears in the following advisories)

Frequently Asked Questions

  • What is CVE-2023-29406?

    CVE-2023-29406 is a vulnerability in the HTTP/1 client in Golang, which allows a maliciously crafted Host header to inject additional headers or entire requests.

  • What is the severity of CVE-2023-29406?

    CVE-2023-29406 has a severity value of 6.5, which is considered medium.

  • How does CVE-2023-29406 affect Golang Go?

    CVE-2023-29406 affects Golang Go versions from 1.20.0 up to and including 1.20.6, as well as versions up to and including 1.19.11.

  • How can I fix CVE-2023-29406?

    To fix CVE-2023-29406, update to Golang Go version 1.20.7 or 1.19.12 or later.

  • What are the references for CVE-2023-29406?

    The references for CVE-2023-29406 are: - https://groups.google.com/g/golang-announce/c/2q13H6LEEx0 - https://go.dev/cl/506996 - https://pkg.go.dev/vuln/GO-2023-1878

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