An openjdk-8 security update has been released for Debian GNU/Linux 9 LTS.

DLA 2814-1: openjdk-8 security update

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Debian LTS Advisory DLA-2814-1 debian-lts@lists.debian.org
  https://www.debian.org/lts/security/ Roberto C. Sánchez
November 09, 2021   https://wiki.debian.org/LTS
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Package : openjdk-8
Version : 8u312-b07-1~deb9u1
CVE ID : CVE-2021-35550 CVE-2021-35556 CVE-2021-35559 CVE-2021-35561
CVE-2021-35564 CVE-2021-35565 CVE-2021-35567 CVE-2021-35578
CVE-2021-35586 CVE-2021-35588 CVE-2021-35603

Several vulnerabilities have been discovered in the OpenJDK Java runtime,
including issues with cyprographic hashing, TLS client handshaking, and
various other issues.

Thanks to Thorsten Glaser and ⮡ tarent for contributing the updated
packages to address these vulnerabilities.

For Debian 9 stretch, these problems have been fixed in version
8u312-b07-1~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 LTS security advisories, how to apply
these updates to your system and frequently asked questions can be
found at:   https://wiki.debian.org/LTS