Updated OpenJDK packages has been released for both Debian GNU/Linux 9 and 10:

DSA 4485-1: openjdk-8 security update
DSA 4486-1: openjdk-11 security update

DSA 4485-1: openjdk-8 security update

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Debian Security Advisory DSA-4485-1 security@debian.org
https://www.debian.org/security/ Moritz Muehlenhoff
July 21, 2019 https://www.debian.org/security/faq
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Package : openjdk-8
CVE ID : CVE-2019-2745 CVE-2019-2762 CVE-2019-2769 CVE-2019-2786
CVE-2019-2816 CVE-2019-2842

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.

For the detailed security status of openjdk-8 please refer to
its security tracker page at:
https://security-tracker.debian.org/tracker/openjdk-8

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/

DSA 4486-1: openjdk-11 security update

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Debian Security Advisory DSA-4486-1 security@debian.org
https://www.debian.org/security/ Moritz Muehlenhoff
July 21, 2019 https://www.debian.org/security/faq
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Package : openjdk-11
CVE ID : CVE-2019-2745 CVE-2019-2762 CVE-2019-2769 CVE-2019-2786
CVE-2019-2816 CVE-2019-2818 CVE-2019-2821

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 stable distribution (buster), these problems have been fixed in
version 11.0.4+11-1~deb10u1.

We recommend that you upgrade your openjdk-11 packages.

For the detailed security status of openjdk-11 please refer to
its security tracker page at:
https://security-tracker.debian.org/tracker/openjdk-11

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/