USN-6696-1: OpenJDK 8 vulnerabilities

Releases

• Ubuntu 23.10
• Ubuntu 22.04 LTS
• Ubuntu 20.04 LTS
• Ubuntu 18.04 ESM

Packages

• openjdk-8 - Open Source Java implementation

Details

Yi Yang discovered that the Hotspot component of OpenJDK 8 incorrectly
handled array accesses in the C1 compiler. An attacker could possibly
use this issue to cause a denial of service, execute arbitrary code or
bypass Java sandbox restrictions. (CVE-2024-20918)

It was discovered that the Hotspot component of OpenJDK 8 did not
properly verify bytecode in certain situations. An attacker could
possibly use this issue to bypass Java sandbox restrictions.
(CVE-2024-20919)

It was discovered that the Hotspot component of OpenJDK 8 had an
optimization flaw when generating range check loop predicates. An attacker
could possibly use this issue to cause a denial of service, execute
arbitrary code or bypass Java sandbox restrictions. (CVE-2024-20921)

Valentin Eudeline discovered that OpenJDK 8 incorrectly handled certain
options in the Nashorn JavaScript subcomponent. An attacker could
possibly use this issue to execute arbitrary code. (CVE-2024-20926)

It was discovered that OpenJDK 8 could produce debug logs that contained
private keys used for digital signatures. An attacker could possibly use
this issue to obtain sensitive information. (CVE-2024-20945)

Hubert Kario discovered that the TLS implementation in OpenJDK 8 had a
timing side-channel and incorrectly handled RSA padding. A remote attacker
could possibly use this issue to recover sensitive information.
(CVE-2024-20952)

Update instructions

The problem can be corrected by updating your system to the following package versions:

Ubuntu 23.10

• openjdk-8-jdk - 8u402-ga-2ubuntu1~23.10.1
• openjdk-8-jdk-headless - 8u402-ga-2ubuntu1~23.10.1
• openjdk-8-jre - 8u402-ga-2ubuntu1~23.10.1
• openjdk-8-jre-headless - 8u402-ga-2ubuntu1~23.10.1
• openjdk-8-jre-zero - 8u402-ga-2ubuntu1~23.10.1

Ubuntu 22.04

• openjdk-8-jdk - 8u402-ga-2ubuntu1~22.04
• openjdk-8-jdk-headless - 8u402-ga-2ubuntu1~22.04
• openjdk-8-jre - 8u402-ga-2ubuntu1~22.04
• openjdk-8-jre-headless - 8u402-ga-2ubuntu1~22.04
• openjdk-8-jre-zero - 8u402-ga-2ubuntu1~22.04

Ubuntu 20.04

• openjdk-8-jdk - 8u402-ga-2ubuntu1~20.04
• openjdk-8-jdk-headless - 8u402-ga-2ubuntu1~20.04
• openjdk-8-jre - 8u402-ga-2ubuntu1~20.04
• openjdk-8-jre-headless - 8u402-ga-2ubuntu1~20.04
• openjdk-8-jre-zero - 8u402-ga-2ubuntu1~20.04

Ubuntu 18.04

• openjdk-8-jdk - 8u402-ga-2ubuntu1~18.04
  Available with Ubuntu Pro
• openjdk-8-jdk-headless - 8u402-ga-2ubuntu1~18.04
  Available with Ubuntu Pro
• openjdk-8-jre - 8u402-ga-2ubuntu1~18.04
  Available with Ubuntu Pro
• openjdk-8-jre-headless - 8u402-ga-2ubuntu1~18.04
  Available with Ubuntu Pro
• openjdk-8-jre-zero - 8u402-ga-2ubuntu1~18.04
  Available with Ubuntu Pro

This update uses a new upstream release, which includes additional bug
fixes. After a standard system update you need to restart any Java
applications to make all the necessary changes.

References

• CVE-2024-20945
• CVE-2024-20952
• CVE-2024-20919
• CVE-2024-20918
• CVE-2024-20921
• CVE-2024-20926

Related notices

• USN-6660-1: openjdk-11-jdk-headless, openjdk-11-jre-zero, openjdk-11-jdk, openjdk-11-source, openjdk-11-jre-headless, openjdk-lts, openjdk-11-doc, openjdk-11-demo, openjdk-11-jre
• USN-6661-1: openjdk-17-jre-zero, openjdk-17-source, openjdk-17-jre-headless, openjdk-17-jdk-headless, openjdk-17, openjdk-17-demo, openjdk-17-jre, openjdk-17-jdk, openjdk-17-doc
• USN-6662-1: openjdk-21-source, openjdk-21, openjdk-21-jre-zero, openjdk-21-doc, openjdk-21-jre-headless, openjdk-21-jdk-headless, openjdk-21-jdk, openjdk-21-jre, openjdk-21-demo