Red Hat Security Advisory 2013-1014-01 - These packages provide the OpenJDK 6 Java Runtime Environment and the OpenJDK 6 Software Development Kit. Multiple flaws were discovered in the ImagingLib and the image attribute, channel, layout and raster processing in the 2D component. An untrusted Java application or applet could possibly use these flaws to trigger Java Virtual Machine memory corruption. Integer overflow flaws were found in the way AWT processed certain input. An attacker could use these flaws to execute arbitrary code with the privileges of the user running an untrusted Java applet or application.
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