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[Bug 2003709] [NEW] Apache2 magic mime file is broken (2.4.52-1ubuntu4.2)

To: enterprise-support@xxxxxxxxxxxxxxxxxxx
From: Eli Barzilay <2003709@xxxxxxxxxxxxxxxxxx>
Date: Mon, 23 Jan 2023 12:19:35 -0000
Reply-to: Bug 2003709 <2003709@xxxxxxxxxxxxxxxxxx>
Sender: noreply@xxxxxxxxxxxxx

Public bug reported:

The default `/etc/apache2/magic` file that comes with apache2 seems to
be broken.

I don't know what exactly is the problem, but here are a few details
that demonstrate that it is indeed broken:

* echo -e "<!DOCTYPE HTML>\nblah blah" > /tmp/foo

* file -m /etc/apache2/magic /tmp/foo
  => Shows a bunch of "string modifier `B' invalid" warnings
     and finally: "could not find any valid magic files!"

* Trying to fetch this file via apache for a configuration that has
"a2enmod mime_magic" results in no Content-Type header

* Now, get the original magic file from https://raw.githubusercontent.com/apache/httpd/trunk/docs/conf/magic
  drop it in the same place:
  => the `file` command now works as expected,
  => fetching the file via apache has the expected Content-Type header

* Alternatively, modify the original magic file by removing all "B" modifiers
  (on lines 187, 402, 403, 404, 405, 622, 627, 631, 632)
  => both the `file` command and the header from apache work

---

version information:

$ lsb_release -rd
Description:	Ubuntu 22.04.1 LTS
Release:	22.04

$ apt-cache policy apache2
apache2:
  Installed: 2.4.52-1ubuntu4.2
  Candidate: 2.4.52-1ubuntu4.2
  Version table:
 *** 2.4.52-1ubuntu4.2 500
        500 http://us.archive.ubuntu.com/ubuntu jammy-updates/main amd64 Packages
        100 /var/lib/dpkg/status
     2.4.52-1ubuntu4.1 500
        500 http://us.archive.ubuntu.com/ubuntu jammy-security/main amd64 Packages
     2.4.52-1ubuntu4 500
        500 http://us.archive.ubuntu.com/ubuntu jammy/main amd64 Packages

** Affects: apache2 (Ubuntu)
     Importance: Undecided
         Status: New

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https://bugs.launchpad.net/bugs/2003709

Title:
  Apache2 magic mime file is broken (2.4.52-1ubuntu4.2)

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Follow ups

[Bug 2003709] Re: Apache2 magic mime file is broken (2.4.52-1ubuntu4.2)
From: Lucas Kanashiro, 2023-01-24