A ProFTPd security update has been released for Gentoo Linux.

GLSA 202305-03 : ProFTPd: Memory Disclosure

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Gentoo Linux Security Advisory GLSA 202305-03
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  https://security.gentoo.org/
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Severity: Low
Title: ProFTPd: Memory Disclosure
Date: May 03, 2023
Bugs: #811495
ID: 202305-03

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Synopsis
=======
A vulnerability has been discovered in ProFTPd which could result in
memory disclosure.

Background
=========
ProFTPD is an advanced and very configurable FTP server.

Affected packages
================
-------------------------------------------------------------------
Package / Vulnerable / Unaffected
-------------------------------------------------------------------
1 net-ftp/proftpd < 1.3.7c >= 1.3.7c

Description
==========
ProFTPd unconditionally sends passwords to Radius servers for
authentication in multiples of 16 bytes. If a password is not of a
length that is a multiple of 16 bytes, ProFTPd will read beyond the end
of the password string and send bytes beyond the end of the string
buffer.

Impact
=====
Radius servers used for authentication can receive the contents of the
ProFTPd process' memory.

Workaround
=========
There is no known workaround at this time.

Resolution
=========
All ProFTPd users should upgrade to the latest version:

# emerge --sync
# emerge --ask --oneshot --verbose ">=net-ftp/proftpd-1.3.7c"

References
=========
[ 1 ] CVE-2021-46854
  https://nvd.nist.gov/vuln/detail/CVE-2021-46854

Availability
===========
This GLSA and any updates to it are available for viewing at
the Gentoo Security Website:

  https://security.gentoo.org/glsa/202305-03

Concerns?
========
Security is a primary focus of Gentoo Linux and ensuring the
confidentiality and security of our users' machines is of utmost
importance to us. Any security concerns should be addressed to
security@gentoo.org or alternatively, you may file a bug at
  https://bugs.gentoo.org.

License
======
Copyright 2023 Gentoo Foundation, Inc; referenced text
belongs to its owner(s).

The contents of this document are licensed under the
Creative Commons - Attribution / Share Alike license.

  https://creativecommons.org/licenses/by-sa/2.5