Several vulnerabilities have been discovered in the OpenJDK Java runtime, resulting in information disclosure, denial of service or bypass of sandbox restrictions. In addition the implementation of elliptic curve cryptography was modernised.
For the oldstable distribution (stretch), these problems have been fixed in version 8u222-b10-1~deb9u1.
We recommend that you upgrade your openjdk-8 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/