It was found that jackson-databind, a Java library used to parse JSON and other data formats, could deserialize data without proper validation, allowing a maliciously client to perform remote code execution on a service with the required characteristics.

For Debian 8 Jessie, these problems have been fixed in version 2.4.2-2+deb8u11.

We recommend that you upgrade your jackson-databind 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