Unspecified vulnerability in the Java Runtime Environment (JRE) component in Oracle Java SE 7 through Update 11, and OpenJDK 7, allows user-assisted remote attackers to bypass the Java security sandbox via unspecified vectors related to JMX, aka "Issue 52," a different vulnerability than CVE-2013-1490.

Unspecified vulnerability in the Java Runtime Environment (JRE) component in Oracle Java SE 7 Update 7 and earlier, and 6 Update 35 and earlier, allows remote attackers to affect confidentiality and integrity via unknown vectors related to Hotspot.

Julian Wälde and Alexander Klink reported that the String.hashCode() hash function is not sufficiently collision resistant. hashCode() value is used in the implementations of HashMap and Hashtable classes:

http://docs.oracle.com/javase/6/docs/api/java/util/HashMap.html http://docs.oracle.com/javase/6/docs/api/java/util/Hashtable.html

A specially-crafted set of keys could trigger hash function collisions, which can degrade performance of HashMap or Hashtable by changing hash table operations complexity from an expected/average O(1) to the worst case O(n). Reporters were able to find colliding strings efficiently using equivalent substrings and meet in the middle techniques.

This problem can be used to start a denial of service attack against Java applications that use untrusted inputs as HashMap or Hashtable keys. An example of such application is web application server (such as tomcat, see bug #750521) that may fill hash tables with data from HTTP request (such as GET or POST parameters). A remote attack could use that to make JVM use excessive amount of CPU time by sending a POST request with large amount of parameters which hash to the same value.

This problem is similar to the issue that was previously reported for and fixed in e.g. perl: http://www.cs.rice.edu/~scrosby/hash/CrosbyWallachUsenixSec2003.pdf

Unspecified vulnerability in the Java Runtime Environment (JRE) component in Oracle Java SE 7 update 4 and earlier allows remote attackers to affect confidentiality and integrity via unknown vectors related to Libraries.

Unspecified vulnerability in the Java Runtime Environment (JRE) component in Oracle Java SE 7 update 4 and earlier, 6 update 32 and earlier, 5 update 35 and earlier, and 1.4.237 and earlier allows remote attackers to affect integrity, related to CORBA.

Unspecified vulnerability in the Java Runtime Environment (JRE) component in Oracle Java SE 7 update 4 and earlier, and 6 update 32 and earlier, allows remote attackers to affect availability, related to JAXP.

The SerialJavaObject class of the JDBC component did not properly restrict access to certain class packages. An untrusted Java application or applet could possibly use this flaw to bypass Java sandbox restrictions.

Oracle Java SE 7 Update 25 fixes an unspecified vulnerability in the Deployment component (CVE-2013-2437). Upstream has CVSSv2 scored this issue as: 5.0/AV:N/AC:L/Au:N/C:P/I:N/A:N

External Reference:

http://www.oracle.com/technetwork/topics/security/javacpujun2013-1899847.html

It was discovered that the ObjectOutputStream class did not properly perform certain access checks when handling subclasses. An untrusted Java application or applet could possibly use this flaw to disclose potentially sensitive information.

It was discovered that the ObjectStreamClass class did not properly protect against circular references. An untrusted Java application or applet could possibly use this flaw to cause a denial of service.

It was discovered that the Libraries component contained certain errors related to XML security and the class loader. A remote attacker could possibly exploit this flaw to disclose potentially sensitive information and cause a denial of service.

It was discovered that the Networking component did not properly prevent the local address from being revealed. An untrusted Java application or applet could possibly use this flaw to disclose the local address.

It was discovered that access checks for getEnclosingClass, getEnclosingMethod and getEnclosingConstructor were not performed properly. An untrusted Java application or applet could possibly use this flaw to disclose potentially sensitive information.

It was discovered that the AWT component did not properly manage and restrict certain resources related to the processing of fonts. An untrusted Java application or applet could possibly use this flaw to exhaust available resources and cause a denial of service.

It was discovered that the MBeanServer Introspector of the JMX component did not properly verify the package access. An untrusted Java application or applet could possibly use this flaw to bypass intended package restrictions.

It was discovered that CORBA output streams did not properly implement access restrictions. An untrusted Java application or applet could possibly use this flaw to disclose potentially sensitive information.

It was discovered that the java.rmi.dgc.VMID class did not create entirely unique and unpredictable IDs. An untrusted Java application or applet could possibly use this flaw to disclose potentially sensitive information.

It was discovered that JConsole did not properly inform the user in case establishing an SSL connection failed. An attacker could exploit this flaw to gain access to potentially sensitive information.

Unspecified vulnerability in the Java Runtime Environment (JRE) component in Oracle Java SE 7 Update 21 and earlier, 6 Update 45 and earlier, and 5.0 Update 45 and earlier, and OpenJDK 7, allows remote attackers to affect confidentiality via unknown vectors related to Libraries, a different vulnerability than CVE-2013-2452 and CVE-2013-2455. NOTE: the previous information is from the June 2013 CPU. Oracle has not commented on claims from another vendor that this issue is due to an incorrect "checking order" within the AccessControlContext class.

It was discovered that the JMX component did not properly implement certain class checks. An untrusted Java application or applet could possibly use this flaw to bypass intended class restrictions.

It was discovered that the 2D component did not properly process certain fonts. An untrusted Java application or applet could possibly use this flaw to crash the Java VM.

Unspecified vulnerability in the Java Runtime Environment (JRE) component in Oracle Java SE 7 Update 17 and earlier allows remote attackers to affect integrity via unknown vectors related to Deployment.

It was discovered that the Network component did not properly perform InetAddress serialization. An untrusted Java application or applet could possibly use this flaw to disclose sensitive information.

Unspecified vulnerability in the Java Runtime Environment (JRE) component in Oracle Java SE 7 Update 17 and earlier and 6 Update 43 and earlier allows local users to affect confidentiality, integrity, and availability via unknown vectors related to Deployment.

MBeanInstantiator class implementation in OpenJDK JMX component did not properly check class access before creating new instances. Untrusted Java application or applet could use this flaw to create instances of non-public classes.

Unspecified vulnerability in the Java Runtime Environment (JRE) component in Oracle Java SE 7 Update 17 and earlier allows remote attackers to affect integrity via unknown vectors related to JavaFX.

Unspecified vulnerability in the Java Runtime Environment (JRE) component in Oracle Java SE 7 Update 17 and earlier and 6 Update 43 and earlier allows remote attackers to affect integrity via unknown vectors related to Deployment, a different vulnerability than CVE-2013-1540.

It was discovered that an error related to method handles exists in the Libraries component. An untrusted Java application or applet could possibly use this flaw to bypass Java sandbox restrictions.

It was discovered that the GnomeFileTypeDetector did not check for read permissions. An untrusted Java application or applet could possibly use this flaw to disclose potentially sensitive information.

Unspecified vulnerability in the Java Runtime Environment (JRE) component in Oracle Java SE 7 Update 21 and earlier allows remote attackers to affect integrity via unknown vectors related to Deployment, a different vulnerability than CVE-2013-3744.