Advisory Published
Updated

REDHAT-BUG-1534543

First published: Mon Jan 15 2018(Updated: )

It was discovered that the DNS client implementation in the JNDI component of OpenJDK did not use random source ports when sending out DNS queries. This would make it easier for a remote attacker to spoof responses to those queries.

Affected SoftwareAffected VersionHow to fix
OpenJDK

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Frequently Asked Questions

  • What is the severity of REDHAT-BUG-1534543?

    The severity of REDHAT-BUG-1534543 is classified as high due to the potential for DNS response spoofing.

  • How do I fix REDHAT-BUG-1534543?

    To fix REDHAT-BUG-1534543, update your OpenJDK to the latest version that contains the patch addressing the random source port issue.

  • What versions of OpenJDK are affected by REDHAT-BUG-1534543?

    REDHAT-BUG-1534543 affects specific versions of OpenJDK that utilize the JNDI component for DNS queries.

  • What are the risks associated with REDHAT-BUG-1534543?

    The risks associated with REDHAT-BUG-1534543 include increased exposure to DNS spoofing attacks, potentially allowing attackers to intercept or manipulate network traffic.

  • Is REDHAT-BUG-1534543 a known issue in other software?

    Yes, REDHAT-BUG-1534543 is a known issue primarily associated with OpenJDK's JNDI implementation, but similar vulnerabilities can occur in other software handling DNS queries.

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