CVE-2020-36309

Publication date 6 April 2021

Last updated 18 August 2025

Ubuntu priority

Low

Why this priority?

Cvss 3 Severity Score

5.3 · Medium

Score breakdown

ngx_http_lua_module (aka lua-nginx-module) before 0.10.16 in OpenResty allows unsafe characters in an argument when using the API to mutate a URI, or a request or response header.

Read the notes from the security team

Status

Package Ubuntu Release Status
nginx 25.04 plucky
Not affected
24.10 oracular
Not affected
24.04 LTS noble
Not affected
23.10 mantic
Not affected
23.04 lunar
Not affected
22.10 kinetic
Not affected
22.04 LTS jammy
Not affected
21.10 impish
Not affected
21.04 hirsute
Not affected
20.10 groovy Ignored end of life
20.04 LTS focal
Fixed 1.18.0-0ubuntu1.3
18.04 LTS bionic
Fixed 1.14.0-0ubuntu1.10
16.04 LTS xenial
Fixed 1.10.3-0ubuntu0.16.04.5+esm3
14.04 LTS trusty
Vulnerable

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Notes

mdeslaur

The lua module is included in the debian directory as it is not part of the upstream nginx release. It is included in the nginx-extras binary package in universe.

sbeattie

fix introduced upstream issue 1676, and addressed by beb5c6ba03b654c lua-nginx-module was pulled from the nginx package in ubuntu in Ubuntu 21.04 (hirsute) version 1.18.0-6ubuntu8

Patch details

For informational purposes only. We recommend not to cherry-pick updates. How can I get the fixes?

Package Patch details
nginx

Severity score breakdown

Parameter Value
Base score 5.3 · Medium
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Scope Unchanged
Confidentiality None
Integrity impact Low
Availability impact None
Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

References

Related Ubuntu Security Notices (USN)

Other references