The remote host is affected by the vulnerability described in GLSA-202003-35 (ProFTPd: Multiple vulnerabilities)

    Multiple vulnerabilities have been discovered in ProFTPd. Please review       the CVE identifiers referenced below for details.
  Impact :

    A remote attacker, by interrupting the data transfer channel, could       possibly execute arbitrary code with the privileges of the process or       cause a Denial of Service condition.
  Workaround :

    There is no known workaround at this time.

This is a cumulative bug-fix update from upstream, including a fix for a pre-authentication remote denial of service issue.

Note that Tenable Network Security has extracted the preceding description block directly from the Fedora update system website.
Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

An issue has been found in proftp-dfsg, a versatile, virtual-hosting FTP daemon.

Due to incorrect handling of overly long commands, a remote unauthenticated user could trigger a denial of service by reaching an

endless loop.

For Debian 8 'Jessie', this problem has been fixed in version 1.3.5e+r1.3.5-2+deb8u4.

We recommend that you upgrade your proftpd-dfsg packages.

NOTE: Tenable Network Security has extracted the preceding description block directly from the DLA security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

This update for proftpd fixes the following issues :

  - GeoIP has been discontinued by Maxmind (boo#1156210)     This update removes module build for geoip see     https://support.maxmind.com/geolite-legacy-discontinuati     on-notice/

  - CVE-2019-19269: Fixed a NULL pointer dereference may     occur when validating the certificate of a client     connecting to the server (boo#1157803)

  - CVE-2019-19270: Fixed a Failure to check for the     appropriate field of a CRL entry prevents some valid     CRLs from being taken into account (boo#1157798)

  - CVE-2019-18217: Fixed remote unauthenticated     denial-of-service due to incorrect handling of overly     long commands (boo#1154600 gh#846)

Update to 1.3.6b

  - Fixed pre-authentication remote denial-of-service issue     (Issue #846).

  - Backported fix for building mod_sql_mysql using MySQL 8     (Issue #824).

Update to 1.3.6a :

  - Fixed symlink navigation (Bug#4332).

  - Fixed building of mod_sftp using OpenSSL 1.1.x releases     (Issue#674).

  - Fixed SITE COPY honoring of <Limit> restrictions     (Bug#4372).

  - Fixed segfault on login when using mod_sftp +     mod_sftp_pam (Issue#656).

  - Fixed restarts when using mod_facl as a static module

  - Add missing Requires(pre): group(ftp) for Leap 15 and     Tumbleweed (boo#1155834)

  - Add missing Requires(pre): user(ftp) for Leap 15 and     Tumbleweed (boo#1155834)

  - Use pam_keyinit.so (boo#1144056)

  - Reduce hard dependency on systemd to only that which is     necessary for building and installation.

update to 1.3.6 :

  - Support for using Redis for caching, logging; see the     doc/howto/Redis.html documentation.

  - Fixed mod_sql_postgres SSL support (Issue #415).

  - Support building against LibreSSL instead of OpenSSL     (Issue #361).

  - Better support on AIX for login restraictions (Bug     #4285).

  - TimeoutLogin (and other timeouts) were not working     properly for SFTP connections (Bug#4299).

  - Handling of the SIGILL and SIGINT signals, by the daemon     process, now causes the child processes to be terminated     as well (Issue #461).

  - RPM .spec file naming changed to conform to Fedora     guidelines.

  - Fix for 'AllowChrootSymlinks off' checking each     component for symlinks (CVE-2017-7418).

New Modules :

  - mod_redis, mod_tls_redis, mod_wrap2_redis With Redis now     supported as a caching mechanism, similar to Memcache,     there are now Redis-using modules: mod_redis (for     configuring the Redis connection information),     mod_tls_redis (for caching SSL sessions and OCSP     information using Redis), and mod_wrap2_redis (for using     ACLs stored in Redis).

Changed Modules :

  - mod_ban: The mod_ban module's BanCache directive can now     use Redis-based caching; see     doc/contrib/mod_ban.html#BanCache.

-New Configuration Directives

  - SQLPasswordArgon2, SQLPasswordScrypt

    The key lengths for Argon2 and Scrypt-based passwords     are now configurable via these new directives;
    previously, the key length had been hardcoded to be 32     bytes, which is not interoperable with all other     implementations (Issue #454).

Changed Configuration Directives

  - AllowChrootSymlinks When 'AllowChrootSymlinks off' was     used, only the last portion of the DefaultRoot path     would be checked to see if it was a symlink. Now, each     component of the DefaultRoot path will be checked to see     if it is a symlink when 'AllowChrootSymlinks off' is     used.

  - Include The Include directive can now be used within a     <Limit> section, e.g.: <Limit LOGIN> Include     /path/to/allowed.txt DenyAll </Limit> API Changes

  - A new JSON API has been added, for use by third-party     modules.

Stephan Zeisberg discovered that missing input validation in ProFTPD, a FTP/SFTP/FTPS server, could result in denial of service via an infinite loop.

ID	Name	Product	Family	Published	Updated	Severity
134641	GLSA-202003-35 : ProFTPd: Multiple vulnerabilities	Nessus	Gentoo Local Security Checks	3/18/2020	3/21/2024	high
130352	Fedora 30 : proftpd (2019-7559f29ace)	Nessus	Fedora Local Security Checks	10/29/2019	4/16/2024	high
130287	Debian DLA-1974-1 : proftpd-dfsg security update	Nessus	Debian Local Security Checks	10/28/2019	4/16/2024	high
130307	Fedora 31 : proftpd (2019-848e410cfb)	Nessus	Fedora Local Security Checks	10/28/2019	4/16/2024	high
132911	openSUSE Security Update : proftpd (openSUSE-2020-31)	Nessus	SuSE Local Security Checks	1/15/2020	3/29/2024	critical
130314	Fedora 29 : proftpd (2019-ae019c7e9f)	Nessus	Fedora Local Security Checks	10/28/2019	4/16/2024	high
130525	Debian DSA-4559-1 : proftpd-dfsg - security update	Nessus	Debian Local Security Checks	11/6/2019	4/16/2024	high

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