USN-3747-1: OpenJDK 10 vulnerabilities

Releases

• Ubuntu 18.04 ESM

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

• openjdk-11-jre - 10.0.2+13-1ubuntu0.18.04.1
• openjdk-11-jre-headless - 10.0.2+13-1ubuntu0.18.04.1
• openjdk-11-jre-zero - 10.0.2+13-1ubuntu0.18.04.1

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

• CVE-2018-2825
• CVE-2018-2826
• CVE-2018-2952
• CVE-2018-2972

Related notices

• USN-3735-1: openjdk-7-jre-headless, openjdk-7-jdk, openjdk-7-demo, openjdk-7-doc, openjdk-7-jre-zero, openjdk-7-tests, openjdk-7-source, openjdk-7, openjdk-7-jre-lib, icedtea-7-jre-jamvm, openjdk-7-jre
• USN-3734-1: openjdk-8-demo, openjdk-8-jre, openjdk-8-doc, openjdk-8-jre-jamvm, openjdk-8, openjdk-8-jdk, openjdk-8-jre-zero, openjdk-8-jre-headless, openjdk-8-jdk-headless, openjdk-8-source