USN-3747-2: OpenJDK 10 regression

Releases

• Ubuntu 18.04 ESM

Packages

• openjdk-lts - Open Source Java implementation

Details

USN-3747-1 fixed vulnerabilities in OpenJDK 10 for Ubuntu 18.04 LTS.
Unfortunately, that update introduced a regression around accessability
support that prevented some Java applications from starting.
This update fixes the problem.

We apologize for the inconvenience.

Original advisory details:

It was discovered that OpenJDK did not properly validate types in some
situations. An attacker could use this to construct a Java class that could
possibly bypass sandbox restrictions. (CVE-2018-2825, CVE-2018-2826)

It was discovered that the PatternSyntaxException class in OpenJDK did not
properly validate arguments passed to it. An attacker could use this to
potentially construct a class that caused a denial of service (excessive
memory consumption). (CVE-2018-2952)

Daniel Bleichenbacher discovered a vulnerability in the Galois/Counter Mode
(GCM) mode of operation for symmetric block ciphers in OpenJDK. An attacker
could use this to expose sensitive information. (CVE-2018-2972)

Update instructions

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

Ubuntu 18.04

• openjdk-11-jdk - 10.0.2+13-1ubuntu0.18.04.2
• openjdk-11-jdk-headless - 10.0.2+13-1ubuntu0.18.04.2
• openjdk-11-jre - 10.0.2+13-1ubuntu0.18.04.2
• openjdk-11-jre-headless - 10.0.2+13-1ubuntu0.18.04.2
• openjdk-11-jre-zero - 10.0.2+13-1ubuntu0.18.04.2

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

References

• https://launchpad.net/bugs/1788250