Integer overflow in the JAR unpacking utility (unpack200) in the unpack library (unpack.dll) in Java Runtime Environment (JRE) for Sun JDK and JRE 6 Update 10 and earlier, and JDK and JRE 5.0 Update 16 and earlier, allows untrusted applications and applets to gain privileges via a Pack200 compressed JAR file that triggers a heap-based buffer overflow.

Java Runtime Environment (JRE) for Sun JDK and JRE 6 Update 10 and earlier; JDK and JRE 5.0 Update 16 and earlier; and SDK and JRE 1.4.2_18 and earlier accepts UTF-8 encodings that are not the "shortest" form, which makes it easier for attackers to bypass protection mechanisms for other applications that rely on shortest-form UTF-8 encodings.

Heap-based buffer overflow in Java Runtime Environment (JRE) for Sun JDK and JRE 6 Update 10 and earlier; JDK and JRE 5.0 Update 16 and earlier; and SDK and JRE 1.4.2_18 and earlier might allow remote attackers to execute arbitrary code via a crafted TrueType font file.

Unspecified vulnerability in Java Web Start (JWS) and Java Plug-in with Sun JDK and JRE 6 Update 10 and earlier; JDK and JRE 5.0 Update 16 and earlier; and SDK and JRE 1.4.2_18 and earlier allows untrusted JWS applications to perform network connections to unauthorized hosts via unknown vectors, aka CR 6727079.

Unspecified vulnerability in Java Web Start (JWS) and Java Plug-in with Sun JDK and JRE 6 Update 10 and earlier; JDK and JRE 5.0 Update 16 and earlier; and SDK and JRE 1.4.2_18 and earlier allows untrusted JWS applications to gain privileges to access local files or applications via unknown vectors, aka 6727081.

Unspecified vulnerability in Java Web Start (JWS) and Java Plug-in with Sun JDK and JRE 6 Update 10 and earlier, and JDK and JRE 5.0 Update 16 and earlier, allows untrusted JWS applications to obtain the pathname of the JWS cache and the application username via unknown vectors, aka CR 6727071.

Java Web Start (JWS) and Java Plug-in with Sun JDK and JRE 6 Update 10 and earlier; JDK and JRE 5.0 Update 16 and earlier; and SDK and JRE 1.4.2_18 and earlier allows remote attackers to make unauthorized network connections and hijack HTTP sessions via a crafted file that validates as both a GIF and a Java JAR file, aka "GIFAR" and CR 6707535.

Unspecified vulnerability in Java Runtime Environment (JRE) for Sun JDK and JRE 6 Update 10 and earlier; JDK and JRE 5.0 Update 16 and earlier; and SDK and JRE 1.4.2_18 and earlier allows untrusted applications and applets to list the contents of the operating user's directory via unknown vectors.

Unspecified vulnerability in the BasicService for Java Web Start (JWS) and Java Plug-in with Sun JDK and JRE 6 Update 10 and earlier; JDK and JRE 5.0 Update 16 and earlier; and SDK and JRE 1.4.2_18 and earlier allows untrusted downloaded applications to cause local files to be displayed in the browser of the user of the untrusted application via unknown vectors, aka 6767668.

The Java Runtime Environment (JRE) for Sun JDK and JRE 6 Update 10 and earlier; JDK and JRE 5.0 Update 16 and earlier; and SDK and JRE 1.4.2_18 and earlier does not properly enforce context of ZoneInfo objects during deserialization, which allows remote attackers to run untrusted applets and applications in a privileged context, as demonstrated by "deserializing Calendar objects".