This is an OpenPGP/MIME signed message (RFC 4880 and 3156)
--===============4825950190923682592==
Content-Language: en-US
Content-Type: multipart/signed; micalg=pgp-sha256;
 protocol="application/pgp-signature";
 boundary="------------23apQrDd0aVOv5w3WrQCA3rK"

This is an OpenPGP/MIME signed message (RFC 4880 and 3156)
--------------23apQrDd0aVOv5w3WrQCA3rK
Content-Type: multipart/mixed;
 boundary="------------fxb0iiT40Tcl5t12TQ2tuLKA";
 protected-headers="v1"
From: Sudhakar Verma <sudhakar.verma@canonical.com>
Reply-To: Ubuntu Security <security@ubuntu.com>
To: ubuntu-security-announce@lists.ubuntu.com
Message-ID: <78963585-1edf-4471-ad98-37adbce3fef7@canonical.com>
Subject: [USN-7297-1] ProFTPD vulnerabilities

--------------fxb0iiT40Tcl5t12TQ2tuLKA
Content-Type: text/plain; charset=UTF-8; format=flowed
Content-Transfer-Encoding: base64

==========================================================================
Ubuntu Security Notice USN-7297-1
February 25, 2025

ProFTPD 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

Summary:

Several security issues were fixed in proftpd-dfsg.

Software Description:
- proftpd-dfsg: Versatile, virtual-hosting FTP daemon

Details:

Fabian Bäumer, Marcus Brinkmann, and Jörg Schwenk discovered that the
transport protocol implementation in ProFTPD had weak integrity checks.
An attacker could use this vulnerability to bypass security features
like encryption and integrity checks. (CVE-2023-48795)

Martin Mirchev discovered that ProFTPD did not properly validate user
input over the network. An attacker could use this vulnerability to
crash ProFTPD or execute arbitrary code. (CVE-2023-51713)

Brian Ristuccia discovered that ProFTPD incorrectly inherited groups
from the parent process. An attacker could use this vulnerability to
elevate privileges. (CVE-2024-48651)

Update instructions:

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

Ubuntu 24.10
   proftpd-core                    1.3.8.b+dfsg-2ubuntu1.24.10.1

Ubuntu 24.04 LTS
   proftpd-core                    1.3.8.b+dfsg-1ubuntu0.1

Ubuntu 22.04 LTS
   proftpd-basic                   1.3.7c+dfsg-1ubuntu0.1
   proftpd-core                    1.3.7c+dfsg-1ubuntu0.1

Ubuntu 20.04 LTS
   proftpd-basic                   1.3.6c-2ubuntu0.1

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

References:
   https://ubuntu.com/security/notices/USN-7297-1
   CVE-2023-48795, CVE-2023-51713, CVE-2024-48651

Package Information:
  
https://launchpad.net/ubuntu/+source/proftpd-dfsg/1.3.8.b+dfsg-2ubuntu1.24.10.1
   https://launchpad.net/ubuntu/+source/proftpd-dfsg/1.3.8.b+dfsg-1ubuntu0.1
   https://launchpad.net/ubuntu/+source/proftpd-dfsg/1.3.7c+dfsg-1ubuntu0.1
   https://launchpad.net/ubuntu/+source/proftpd-dfsg/1.3.6c-2ubuntu0.1

--------------fxb0iiT40Tcl5t12TQ2tuLKA--

--------------23apQrDd0aVOv5w3WrQCA3rK
Content-Type: application/pgp-signature; name="OpenPGP_signature.asc"
Content-Description: OpenPGP digital signature
Content-Disposition: attachment; filename="OpenPGP_signature.asc"

-----BEGIN PGP SIGNATURE-----
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=725D
-----END PGP SIGNATURE-----

--------------23apQrDd0aVOv5w3WrQCA3rK--


--===============4825950190923682592==
Content-Type: text/plain; charset="utf-8"
MIME-Version: 1.0
Content-Transfer-Encoding: base64
Content-Disposition: inline

Cg==

--===============4825950190923682592==--