Tom Richards reported that by using a crafted torrent file one could cause a use-after-free, which might result in a denial of service (crash) or possible execution of arbitrary code.

For Debian 8 Jessie, this problem has been fixed in version 2.84-0.2+deb8u2.

We recommend that you upgrade your transmission 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