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UBUNTU-CVE-2024-24791 High

UBUNTU-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.

Exploit probability Not scored
Published July 2, 2024
Required by Not available
Last source change May 20, 2026

02 / AFFECTED SOFTWARE

Affected packages

Ubuntu:14.04:LTS golang-1.10

1 explicit affected versions

Ubuntu:16.04:LTS golang-1.10

2 explicit affected versions

Ubuntu:16.04:LTS golang-1.6

10 explicit affected versions

Ubuntu:18.04:LTS golang-1.10

8 explicit affected versions

Ubuntu:18.04:LTS golang-1.8

2 explicit affected versions

Ubuntu:18.04:LTS golang-1.9

5 explicit affected versions

Ubuntu:20.04:LTS golang-1.13

10 explicit affected versions

Ubuntu:20.04:LTS golang-1.14

9 explicit affected versions

Ubuntu:20.04:LTS golang-1.18

2 explicit affected versions

Ubuntu:20.04:LTS golang-1.20

2 explicit affected versions

Ubuntu:20.04:LTS golang-1.21

3 explicit affected versions

Ubuntu:20.04:LTS golang-1.22

1 explicit affected versions

Ubuntu:22.04:LTS golang-1.17

5 explicit affected versions

Ubuntu:22.04:LTS golang-1.18

7 explicit affected versions

Ubuntu:22.04:LTS golang-1.20

2 explicit affected versions

Ubuntu:22.04:LTS golang-1.21

3 explicit affected versions

Ubuntu:22.04:LTS golang-1.22

2 explicit affected versions

Ubuntu:24.04:LTS golang-1.21

11 explicit affected versions

Ubuntu:24.04:LTS golang-1.22

8 explicit affected versions

Ubuntu:Pro:16.04:LTS golang-1.13

4 explicit affected versions

Ubuntu:Pro:16.04:LTS golang-1.18

1 explicit affected versions

Ubuntu:Pro:18.04:LTS golang-1.13

4 explicit affected versions

Ubuntu:Pro:18.04:LTS golang-1.16

2 explicit affected versions

Ubuntu:Pro:18.04:LTS golang-1.18

2 explicit affected versions

Ubuntu:Pro:20.04:LTS golang-1.16

3 explicit affected versions

Ubuntu:Pro:22.04:LTS golang-1.13

4 explicit affected versions

03 / CONNECTIONS

Connected vulnerabilities

04 / EVIDENCE

Source records

Open Source Vulnerabilities UBUNTU-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.

View original source

05 / REFERENCES

Further evidence