[USN-4892-1] OpenJDK vulnerability
Eduardo Barretto
eduardo.barretto at canonical.com
Tue Apr 27 17:51:08 UTC 2021
==========================================================================
Ubuntu Security Notice USN-4892-1
April 27, 2021
openjdk-8, openjdk-lts vulnerability
==========================================================================
A security issue affects these releases of Ubuntu and its derivatives:
- Ubuntu 20.10
- Ubuntu 20.04 LTS
- Ubuntu 18.04 LTS
- Ubuntu 16.04 LTS
Summary:
OpenJDK's security restriction could be bypassed when verifying Jar
signatures.
Software Description:
- openjdk-8: Open Source Java implementation
- openjdk-lts: Open Source Java implementation
Details:
It was discovered that OpenJDK incorrectly verified Jar signatures. An
attacker could possibly use this issue to bypass intended security
restrictions when using Jar files signed with a disabled algorithm.
Update instructions:
The problem can be corrected by updating your system to the following
package versions:
Ubuntu 20.10:
openjdk-11-jdk 11.0.11+9-0ubuntu2~20.10
openjdk-11-jre 11.0.11+9-0ubuntu2~20.10
openjdk-11-jre-headless 11.0.11+9-0ubuntu2~20.10
openjdk-11-jre-zero 11.0.11+9-0ubuntu2~20.10
openjdk-8-jdk 8u292-b10-0ubuntu1~20.10
openjdk-8-jre 8u292-b10-0ubuntu1~20.10
openjdk-8-jre-headless 8u292-b10-0ubuntu1~20.10
openjdk-8-jre-zero 8u292-b10-0ubuntu1~20.10
Ubuntu 20.04 LTS:
openjdk-11-jdk 11.0.11+9-0ubuntu2~20.04
openjdk-11-jre 11.0.11+9-0ubuntu2~20.04
openjdk-11-jre-headless 11.0.11+9-0ubuntu2~20.04
openjdk-11-jre-zero 11.0.11+9-0ubuntu2~20.04
openjdk-8-jdk 8u292-b10-0ubuntu1~20.04
openjdk-8-jre 8u292-b10-0ubuntu1~20.04
openjdk-8-jre-headless 8u292-b10-0ubuntu1~20.04
openjdk-8-jre-zero 8u292-b10-0ubuntu1~20.04
Ubuntu 18.04 LTS:
openjdk-11-jdk 11.0.11+9-0ubuntu2~18.04
openjdk-11-jre 11.0.11+9-0ubuntu2~18.04
openjdk-11-jre-headless 11.0.11+9-0ubuntu2~18.04
openjdk-11-jre-zero 11.0.11+9-0ubuntu2~18.04
openjdk-8-jdk 8u292-b10-0ubuntu1~18.04
openjdk-8-jre 8u292-b10-0ubuntu1~18.04
openjdk-8-jre-headless 8u292-b10-0ubuntu1~18.04
openjdk-8-jre-zero 8u292-b10-0ubuntu1~18.04
Ubuntu 16.04 LTS:
openjdk-8-jdk 8u292-b10-0ubuntu1~16.04.1
openjdk-8-jre 8u292-b10-0ubuntu1~16.04.1
openjdk-8-jre-headless 8u292-b10-0ubuntu1~16.04.1
openjdk-8-jre-zero 8u292-b10-0ubuntu1~16.04.1
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:
https://ubuntu.com/security/notices/USN-4892-1
CVE-2021-2163
Package Information:
https://launchpad.net/ubuntu/+source/openjdk-8/8u292-b10-0ubuntu1~20.10
https://launchpad.net/ubuntu/+source/openjdk-lts/11.0.11+9-0ubuntu2~20.10
https://launchpad.net/ubuntu/+source/openjdk-8/8u292-b10-0ubuntu1~20.04
https://launchpad.net/ubuntu/+source/openjdk-lts/11.0.11+9-0ubuntu2~20.04
https://launchpad.net/ubuntu/+source/openjdk-8/8u292-b10-0ubuntu1~18.04
https://launchpad.net/ubuntu/+source/openjdk-lts/11.0.11+9-0ubuntu2~18.04
https://launchpad.net/ubuntu/+source/openjdk-8/8u292-b10-0ubuntu1~16.04.1
-------------- next part --------------
A non-text attachment was scrubbed...
Name: signature.asc
Type: application/pgp-signature
Size: 833 bytes
Desc: not available
URL: <https://lists.ubuntu.com/archives/ubuntu-security-announce/attachments/20210427/7d9ca0cf/attachment.sig>
More information about the ubuntu-security-announce
mailing list