CVE-2019-19269

An issue was discovered in tls_verify_crl in ProFTPD through 1.3.6b. A dereference of a NULL pointer may occur. This pointer is returned by the OpenSSL sk_X509_REVOKED_value() function when encountering an empty CRL installed by a system administrator. The dereference occurs when validating the certificate of a client connecting to the server in a TLS client/server mutual-authentication setup.

An issue was discovered in tls_verify_crl in ProFTPD through 1.3.6b. A dereference of a NULL pointer may occur. This pointer is returned by the OpenSSL sk_X509_REVOKED_value() function when encountering an empty CRL installed by a system administrator. The dereference occurs when validating the certificate of a client connecting to the server in a TLS client/server mutual-authentication setup (CVE-2019-19269).

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-discontinuation-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.

These are all security issues fixed in the proftpd-1.3.6e-1.10 package on the GA media of openSUSE Tumbleweed.