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Ubuntu 22.04 Nginx Redirect Attack Moderate: USN-5371-2

ubuntu
Calendar Grey April 28, 2022
Dist Ubuntu Esm H88
Uncover the nginx flaw rectified in Ubuntu 22.04 LTS along with guidelines for updating and in-depth security insights.
nginx could be made to redirect network traffic.

Summary

nginx could be made to redirect network traffic.

Software Description:

- nginx: small, powerful, scalable web/proxy server

Details:

USN-5371-1 fixed several vulnerabilities in nginx.

This update provides the fix for CVE-2021-3618 for Ubuntu 22.04 LTS.

Original advisory details:

 It was discovered that nginx Lua module mishandled certain inputs.

 An attacker could possibly use this issue to perform an HTTP Request

 Smuggling attack. This issue only affects Ubuntu 18.04 LTS and

 Ubuntu 20.04 LTS. (CVE-2020-11724)

 It was discovered that nginx Lua module mishandled certain inputs.

 An attacker could possibly use this issue to disclose sensitive

 information. This issue only affects Ubuntu 18.04 LTS and

 Ubuntu 20.04 LTS. (CVE-2020-36309)

 It was discovered that nginx mishandled the use of

 compatible certificates among multiple encryption protocols.

 If a remote attacker were able to intercept the communication,

 this issue coul...

Read the Full Advisory

Topics%20covered

Topics Covered

security advisory Ubuntu nginx network threat redirect attack

Update Instructions

The problem can be corrected by updating your system to the following
package versions:

Ubuntu 22.04 LTS:
   nginx-core                      1.18.0-6ubuntu14.1
   nginx-extras                    1.18.0-6ubuntu14.1
   nginx-light                     1.18.0-6ubuntu14.1

In general, a standard system update will make all the necessary changes.

References

 

  https://ubuntu.com/security/notices/USN-5371-1

  CVE-2021-3618

April 28, 2022

Topics%20covered

Topics Covered

security advisory Ubuntu nginx network threat redirect attack

Package Information

  https://launchpad.net/ubuntu/+source/nginx/1.18.0-6ubuntu14.1

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