readObject in (1) Java Runtime Environment (JRE) and (2) Software Development Kit (SDK) 1.4.0 through 1.4.2_05 allows remote attackers to cause a denial of service (JVM unresponsive) via crafted serialized data.

Unknown vulnerability in Sun Java Runtime Environment (JRE) 1.4.2 through 1.4.2_03 allows remote attackers to cause a denial of service (virtual machine hang).

Java Runtime Environment (JRE) and Software Development Kit (SDK) 1.4.2 through 1.4.2_02 allows local users to overwrite arbitrary files via a symlink attack on (1) unpack.log, as created by the unpack program, or (2) .mailcap1 and .mime.types1, as created by the RPM program.

Sun Java Runtime Environment (JRE) 1.x before 1.4.2_11 and 1.5.x before 1.5.0_06, and as used in multiple web browsers, allows remote attackers to cause a denial of service (application crash) via deeply nested object arrays, which are not properly handled by the garbage collector and trigger invalid memory accesses.