This is an OpenPGP/MIME signed message (RFC 4880 and 3156)
--===============7160331136539590302==
Content-Language: en-US
Content-Type: multipart/signed; micalg=pgp-sha256;
 protocol="application/pgp-signature";
 boundary="------------k9Xn7n0ilDVyRA1mU7VhhhHN"

This is an OpenPGP/MIME signed message (RFC 4880 and 3156)
--------------k9Xn7n0ilDVyRA1mU7VhhhHN
Content-Type: multipart/mixed;
 boundary="------------eJBvRIY6zMBuF9P5ElV757LZ";
 protected-headers="v1"
From: Shishir Subedi <shishir.subedi@canonical.com>
Reply-To: Ubuntu Security <security@ubuntu.com>
To: ubuntu-security-announce@lists.ubuntu.com
Message-ID: <0f4b031e-1059-4539-9556-3f52a8e6bbd7@canonical.com>
Subject: [USN-7366-1] Rack vulnerabilities

--------------eJBvRIY6zMBuF9P5ElV757LZ
Content-Type: text/plain; charset=UTF-8; format=flowed
Content-Transfer-Encoding: base64

==========================================================================
Ubuntu Security Notice USN-7366-1
March 24, 2025

ruby-rack vulnerabilities
==========================================================================

A security issue affects these releases of Ubuntu and its derivatives:

- Ubuntu 24.10
- Ubuntu 24.04 LTS
- Ubuntu 22.04 LTS
- Ubuntu 20.04 LTS
- Ubuntu 18.04 LTS
- Ubuntu 16.04 LTS
- Ubuntu 14.04 LTS

Summary:

Several security issues were fixed in Rack.

Software Description:
- ruby-rack: modular Ruby webserver interface

Details:

Nhật Thái Đỗ discovered that Rack incorrectly handled certain usernames. A
remote attacker could possibly use this issue to perform CRLF injection.
(CVE-2025-25184)

Phạm Quang Minh discovered that Rack incorrectly handled certain headers. A
remote attacker could possibly use this issue to perform log injection.
(CVE-2025-27111)

Phạm Quang Minh discovered that Rack did not properly handle relative file
paths. A remote attacker could potentially exploit this to include local
files that should have been inaccessible. (CVE-2025-27610)

Update instructions:

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

Ubuntu 24.10
   ruby-rack                       2.2.7-1.1ubuntu0.1

Ubuntu 24.04 LTS
   ruby-rack                       2.2.7-1ubuntu0.2

Ubuntu 22.04 LTS
   ruby-rack                       2.1.4-5ubuntu1.1+esm1
                                   Available with Ubuntu Pro

Ubuntu 20.04 LTS
   ruby-rack                       2.0.7-2ubuntu0.1+esm6
                                   Available with Ubuntu Pro

Ubuntu 18.04 LTS
   ruby-rack                       1.6.4-4ubuntu0.2+esm7
                                   Available with Ubuntu Pro

Ubuntu 16.04 LTS
   ruby-rack                       1.6.4-3ubuntu0.2+esm7
                                   Available with Ubuntu Pro

Ubuntu 14.04 LTS
   ruby-rack                       1.5.2-3+deb8u3ubuntu1~esm9
                                   Available with Ubuntu Pro

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

References:
   https://ubuntu.com/security/notices/USN-7366-1
   CVE-2025-25184, CVE-2025-27111, CVE-2025-27610

Package Information:
https://launchpad.net/ubuntu/+source/ruby-rack/2.2.7-1.1ubuntu0.1
   https://launchpad.net/ubuntu/+source/ruby-rack/2.2.7-1ubuntu0.2

--------------eJBvRIY6zMBuF9P5ElV757LZ--

--------------k9Xn7n0ilDVyRA1mU7VhhhHN
Content-Type: application/pgp-signature; name="OpenPGP_signature.asc"
Content-Description: OpenPGP digital signature
Content-Disposition: attachment; filename="OpenPGP_signature.asc"

-----BEGIN PGP SIGNATURE-----

wnsEABYIACMWIQSyA9nA4R5iZYAVzFrgLM9xllPy5AUCZ+JpqwUDAAAAAAAKCRDgLM9xllPy5LZC
AP9nMj5A7hfC/fCHOmw4bfIMi4mhQHJmHJHv2WHQoskGOgD/VSZgYBxceNwmlOQpCa6qug9UuckY
RXSmUTM2WpnoGwY=
=wqxC
-----END PGP SIGNATURE-----

--------------k9Xn7n0ilDVyRA1mU7VhhhHN--


--===============7160331136539590302==
Content-Type: text/plain; charset="utf-8"
MIME-Version: 1.0
Content-Transfer-Encoding: base64
Content-Disposition: inline

Cg==

--===============7160331136539590302==--