USN-3366-1: OpenJDK 8 vulnerabilities

Ubuntu Security Notice USN-3366-1

26th July, 2017

openjdk-8 vulnerabilities

A security issue affects these releases of Ubuntu and its
derivatives:

• Ubuntu 17.04



• Ubuntu 16.04 LTS

Summary

Several security issues were fixed in OpenJDK 8.

Software description

• openjdk-8
  - Open Source Java implementation
  
  

Details

It was discovered that the JPEGImageReader class in OpenJDK would
incorrectly read unused image data. An attacker could use this to
specially construct a jpeg image file that when opened by a Java
application would cause a denial of service. ()

It was discovered that integer overflows existed in the Hotspot
component of OpenJDK when generating range check loop predicates. An
attacker could use this to specially construct an untrusted Java
application or applet that could escape sandbox restrictions
and cause a denial of service or possibly execute arbitrary
code. ()

It was discovered that OpenJDK did not properly process parentheses
in function signatures. An attacker could use this to specially
construct an untrusted Java application or applet that could escape
sandbox restrictions. ()

It was discovered that the ServiceRegistry implementation
in OpenJDK did not perform access control checks in certain
situations. An attacker could use this to specially construct
an untrusted Java application or applet that escaped sandbox
restrictions. ()

It was discovered that the DTM exception handling code in the
JAXP component of OpenJDK did not properly perform access control
checks. An attacker could use this to specially construct an untrusted
Java application or applet that could escape sandbox restrictions.
()

It was discovered that the Distributed Garbage Collector (DGC) in
OpenJDK did not properly track references in some situations. A
remote attacker could possibly use this to execute arbitrary
code. ()

It was discovered that the BasicAttribute class in OpenJDK did not
properly bound memory allocation when de-serializing objects. An
attacker could use this to cause a denial of service (memory
consumption). ()

It was discovered that the AWT ImageWatched class in OpenJDK did not
properly perform access control checks, An attacker could use this
to specially construct an untrusted Java application or applet that
could escape sandbox restrictions ()

It was discovered that a timing side-channel vulnerability existed
in the DSA implementation in OpenJDK. An attacker could use this to
expose sensitive information. ()

It was discovered that a timing side-channel vulnerability existed
in the ECDSA implementation in OpenJDK. An attacker could use this
to expose sensitive information. ()

It was discovered that the Elliptic Curve (EC) implementation
in OpenJDK did not properly compute certain elliptic curve
points. An attacker could use this to expose sensitive
information. ()

It was discovered that OpenJDK did not properly enforce disabled
algorithm restrictions on X.509 certificate chains. An attacker
could use this to expose sensitive information or escape sandbox
restrictions. ()

Update instructions

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

Ubuntu 17.04:

Ubuntu 16.04 LTS:

To update your system, please follow these instructions:
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CVE-2017-10243