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Ubuntu 16.04 ESM USN-5371-3 Critical: Nginx Lua Module Smuggling Threat

ubuntu
Calendar Grey October 10, 2022
Dist Ubuntu Esm H88
Urgent security patch released for Ubuntu 16.04 targeting a serious nginx flaw that permits HTTP request smuggling and leakage of confidential data.
A security issue was fixed in nginx's lua module.

Summary

A security issue was fixed in nginx's lua module.

Software Description:

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

Details:

USN-5371-1 and USN-5371-2 fixed several vulnerabilities in nginx.

This update provides the corresponding update for CVE-2020-11724

for Ubuntu 16.04 ESM.

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 was fixed for 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,

...

Read the Full Advisory

Topics%20covered

Topics Covered

security advisory critical Ubuntu nginx sensitive information HTTP request smuggling lua module

Update Instructions

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

Ubuntu 16.04 ESM:
  nginx-core                      1.10.3-0ubuntu0.16.04.5+esm4
  nginx-extras                    1.10.3-0ubuntu0.16.04.5+esm4
  nginx-full                      1.10.3-0ubuntu0.16.04.5+esm4
  nginx-light                     1.10.3-0ubuntu0.16.04.5+esm4

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

References

https://ubuntu.com/security/notices/USN-5371-3

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

CVE-2020-11724

Severity
critical
Lowest
Low
Medium
High
Critical

October 07, 2022

Topics%20covered

Topics Covered

security advisory critical Ubuntu nginx sensitive information HTTP request smuggling lua module

Package Information

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