Multiple vulnerabilities have been found in the Graphite font rendering engine which might result in denial of service or the execution of arbitrary code if a malformed font file is processed.
For the oldstable distribution (jessie), these problems have been fixed in version 1.3.10-1~deb8u1.
For the stable distribution (stretch), these problems have been fixed prior to the initial release.
We recommend that you upgrade your graphite2 packages.
Further information about Debian Security Advisories, how to apply these updates to your system and frequently asked questions can be found at: https://www.debian.org/security/