Your submission was sent successfully! Close

You have successfully unsubscribed! Close

Thank you for signing up for our newsletter!
In these regular emails you will find the latest updates about Ubuntu and upcoming events where you can meet our team.Close

USN-6379-1: vsftpd vulnerability

18 September 2023

vsftpd could allow unintended access to network services.

Reduce your security exposure

Ubuntu Pro provides ten-year security coverage to 25,000+ packages in Main and Universe repositories, and it is free for up to five machines.

Learn more about Ubuntu Pro

Releases

Packages

  • vsftpd - FTP server written for security

Details

It was discovered that vsftpd was vulnerable to the ALPACA TLS protocol
content confusion attack. A remote attacker could possibly use this issue
to redirect traffic from one subdomain to another.

Reduce your security exposure

Ubuntu Pro provides ten-year security coverage to 25,000+ packages in Main and Universe repositories, and it is free for up to five machines.

Learn more about Ubuntu Pro

Update instructions

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

Ubuntu 20.04

This update uses a new upstream release, which includes additional bug
fixes. In general, a standard system update will make all the necessary
changes.

References

Related notices

  • USN-5371-1: libnginx-mod-http-fancyindex, nginx-doc, libnginx-mod-mail, libnginx-mod-http-echo, nginx-extras, nginx-core, nginx-common, libnginx-mod-http-lua, libnginx-mod-http-uploadprogress, libnginx-mod-http-upstream-fair, libnginx-mod-http-dav-ext, libnginx-mod-stream-geoip, libnginx-mod-http-geoip2, libnginx-mod-http-headers-more-filter, libnginx-mod-http-subs-filter, libnginx-mod-http-xslt-filter, libnginx-mod-http-geoip, libnginx-mod-nchan, libnginx-mod-rtmp, nginx, libnginx-mod-http-auth-pam, libnginx-mod-http-perl, libnginx-mod-stream-geoip2, libnginx-mod-http-ndk, libnginx-mod-http-image-filter, libnginx-mod-http-cache-purge, nginx-light, nginx-full, libnginx-mod-stream
  • USN-5371-2: libnginx-mod-http-fancyindex, nginx-doc, libnginx-mod-mail, libnginx-mod-http-echo, nginx-extras, nginx-core, nginx-common, libnginx-mod-http-uploadprogress, libnginx-mod-http-upstream-fair, libnginx-mod-http-dav-ext, libnginx-mod-stream-geoip, libnginx-mod-http-geoip2, libnginx-mod-http-headers-more-filter, libnginx-mod-http-subs-filter, libnginx-mod-http-xslt-filter, libnginx-mod-http-geoip, libnginx-mod-nchan, libnginx-mod-rtmp, nginx, libnginx-mod-http-auth-pam, libnginx-mod-http-perl, libnginx-mod-stream-geoip2, libnginx-mod-http-ndk, libnginx-mod-http-image-filter, libnginx-mod-http-cache-purge, nginx-light, nginx-full, libnginx-mod-stream