USN-3747-1: OpenJDK 10 vulnerabilities

21 August 2018

Several security issues were fixed in OpenJDK 10.

Releases

Packages

  • openjdk-lts - Java runtime based on OpenJDK (debugging symbols)

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

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.

Related notices

  • USN-3735-1: openjdk-7, openjdk-7-jre-lib, icedtea-7-jre-jamvm, openjdk-7-jre-headless, openjdk-7-jre, openjdk-7-jdk
  • USN-3734-1: openjdk-8-jre-headless, openjdk-8-jre-jamvm, openjdk-8-jdk, openjdk-8, openjdk-8-jre