medium
4.3
Advisory Published
CVE Published
Updated

CVE-2015-4749

First published: Mon Jul 13 2015(Updated: )

It was discovered that the DnsClient client class in the JNDI (Java Naming and Directory Interface) component in OpenJDK failed to properly remove information about an outgoing DNS request from the list of outstanding DNS requests when certain errors occurred during DNS resolution. An attacker able to trigger such DNS errors could cause a Java application using JNDI to consume memory and possibly block further DNS resolution (after exhausting all DNS transaction ids).

Credit: secalert_us@oracle.com secalert_us@oracle.com

Affected SoftwareAffected VersionHow to fix
Oracle JRockit=r28.3.6
Oracle JDK=1.6.0-update95
Oracle JDK=1.7.0-update75
Oracle JDK=1.7.0-update80
Oracle JDK=1.8.0-update_33
Oracle JDK=1.8.0-update45
Oracle JRE=1.6.0-update_95
Oracle JRE=1.7.0-update_75
Oracle JRE=1.7.0-update_80
Oracle JRE=1.8.0-update_33
Oracle JRE=1.8.0-update_45
debian/openjdk-8
8u432-b06-2

Remedy

http://www.oracle.com/technetwork/topics/security/cpujul2015-2367936.html

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Reference Links

Frequently Asked Questions

  • What is the vulnerability ID for this Oracle Java SE vulnerability?

    The vulnerability ID for this Oracle Java SE vulnerability is CVE-2015-4749.

  • What is the severity level of the CVE-2015-4749 vulnerability?

    The severity level of the CVE-2015-4749 vulnerability is medium.

  • Which versions of Oracle Java SE are affected by CVE-2015-4749?

    Oracle Java SE 6u95, 7u80, and 8u45 are affected by CVE-2015-4749.

  • How can a remote attacker exploit CVE-2015-4749?

    A remote attacker can exploit CVE-2015-4749 through vectors related to JNDI.

  • Where can I find more information about CVE-2015-4749?

    You can find more information about CVE-2015-4749 on the Oracle Technology Network and Red Hat Errata websites.

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