A stack-based buffer overflow vulnerability in sudo, a program designed to provide limited super user privileges to specific users, triggerable when configured with the pwfeedback option enabled. An unprivileged user can take advantage of this flaw to obtain full root privileges.

For Debian 8 Jessie, this problem has been fixed in version 1.8.10p3-1+deb8u7.

We recommend that you upgrade your sudo packages.

Further information about Debian LTS security advisories, how to apply these updates to your system and frequently asked questions can be found at: https://wiki.debian.org/LTS