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Ubuntu 14.04 LTS USN-3194-1 Moderate: OpenJDK 7 Remote Code Execution

ubuntu
Calendar Grey February 9, 2017
Dist Ubuntu Esm H88
Resolution for various OpenJDK 7 security flaws on Ubuntu affecting data integrity and OS reliability. Notable revisions incorporated.
Several security issues were fixed in OpenJDK 7.

Summary

Several security issues were fixed in OpenJDK 7.

Software Description:

- openjdk-7: Open Source Java implementation

Details:

Karthik Bhargavan and Gaetan Leurent discovered that the DES and

Triple DES ciphers were vulnerable to birthday attacks. A remote

attacker could possibly use this flaw to obtain clear text data from

long encrypted sessions. This update moves those algorithms to the

legacy algorithm set and causes them to be used only if no non-legacy

algorithms can be negotiated. (CVE-2016-2183)

It was discovered that OpenJDK accepted ECSDA signatures using

non-canonical DER encoding. An attacker could use this to modify or

expose sensitive data. (CVE-2016-5546)

It was discovered that OpenJDK did not properly verify object

identifier (OID) length when reading Distinguished Encoding Rules

(DER) records, as used in x.509 certificates and elsewhere. An

attacker could use this to cause a denial of service (memory

consumption). (CVE-2016-5547)

It was discovered that covert t...

Read the Full Advisory

Topics%20covered

Topics Covered

security advisory moderate denial of service Ubuntu remote execution data exposure OpenJDK

Update Instructions

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

Ubuntu 14.04 LTS:
  icedtea-7-jre-jamvm             7u121-2.6.8-1ubuntu0.14.04.3
  openjdk-7-jdk                   7u121-2.6.8-1ubuntu0.14.04.3
  openjdk-7-jre                   7u121-2.6.8-1ubuntu0.14.04.3
  openjdk-7-jre-headless          7u121-2.6.8-1ubuntu0.14.04.3
  openjdk-7-jre-zero              7u121-2.6.8-1ubuntu0.14.04.3

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-3194-1

CVE-2016-2183, CVE-2016-5546, CVE-2016-5547, CVE-2016-5548,

CVE-2016-5552, CVE-2017-3231, CVE-2017-3241, CVE-2017-3252,

CVE-2017-3253, CVE-2017-3261, CVE-2017-3272, CVE-2017-3289

Severity
important
Lowest
Low
Medium
High
Critical

February 09, 2017

Topics%20covered

Topics Covered

security advisory moderate denial of service Ubuntu remote execution data exposure OpenJDK

Package Information

https://launchpad.net/ubuntu/+source/openjdk-7/7u121-2.6.8-1ubuntu0.14.04.3

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