Multiple vulnerabilities were discovered in the wavpack audio codec which could result in denial of service or the execution of arbitrary code if malformed media files are processed.
The oldstable distribution (jessie) is not affected.
For the stable distribution (stretch), these problems have been fixed in version 5.0.0-2+deb9u2.
We recommend that you upgrade your wavpack 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/