Summary
Package updates are available for Amazon Linux 2 that fix the following vulnerabilities: CVE-2024-24791: The net/http HTTP/1.1 client mishandled the case where a server responds to a request with an "Expect: 100-continue" header with a non-informational (200 or higher) status. This mishandling could leave a client connection in an invalid state, where the next request sent on the connection will fail. An attacker sending a request to a net/http/httputil.ReverseProxy proxy can exploit this mishandling to cause a denial of service by sending "Expect: 100-continue" requests which elicit a non-informational response from the backend. Each such request leaves the proxy with an invalid connection, and causes one subsequent request using that connection to fail.
Fixed packages 7
| Release | Package | Fixed in |
|---|---|---|
| Amazon Linux · 2 | golang | 0:1.22.5-1.amzn2.0.1 |
| Amazon Linux · 2 | golang-bin | 0:1.22.5-1.amzn2.0.1 |
| Amazon Linux · 2 | golang-docs | 0:1.22.5-1.amzn2.0.1 |
| Amazon Linux · 2 | golang-misc | 0:1.22.5-1.amzn2.0.1 |
| Amazon Linux · 2 | golang-shared | 0:1.22.5-1.amzn2.0.1 |
| Amazon Linux · 2 | golang-src | 0:1.22.5-1.amzn2.0.1 |
| Amazon Linux · 2 | golang-tests | 0:1.22.5-1.amzn2.0.1 |
Vulnerabilities 1
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High 7.5
Denial of service due to improper 100-continue handling in net/http
The net/http HTTP/1.1 client mishandled the case where a server responds to a request with an "Expect: 100-continue" header with a non-informational (200 or higher) status. This mishandling could leave a client connection in an invalid state, where the next r…
References
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web
https://alas.aws.amazon.com/cve/html/CVE-2024-24791.html