Summary
Package updates are available for Amazon Linux 2 that fix the following vulnerabilities: CVE-2023-29406: The HTTP/1 client does not fully validate the contents of the Host header. A maliciously crafted Host header can inject additional headers or entire requests. With fix, the HTTP/1 client now refuses to send requests containing an invalid Request.Host or Request.URL.Host value. CVE-2022-41723: http2/hpack: avoid quadratic complexity in hpack decoding
Fixed packages 2
| Release | Package | Fixed in |
|---|---|---|
| Amazon Linux · 2 | cri-tools | 0:1.26.1-1.amzn2.0.1 |
| Amazon Linux · 2 | cri-tools-debuginfo | 0:1.26.1-1.amzn2.0.1 |
Vulnerabilities 2
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High 7.5
Denial of service via crafted HTTP/2 stream in net/http and golang.org/x/net
A maliciously crafted HTTP/2 stream could cause excessive CPU consumption in the HPACK decoder, sufficient to cause a denial of service from a small number of small requests.
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Unscored —CVE-2023-29406 Public exploit
Insufficient sanitization of Host header in net/http
The HTTP/1 client does not fully validate the contents of the Host header. A maliciously crafted Host header can inject additional headers or entire requests. With fix, the HTTP/1 client now refuses to send requests containing an invalid Request.Host or Reque…