Apple’s iPhone OS 3.1.3 Upgrade Has a Security Fix

Apple on Tuesday issued a point update to its iPhone OS, making only a few fixes to the phone’s software despite not having patched it in months. It’s likely there won’t be a major fix until the release of OS 3.2, which will likely coincide with the release of the iPad slated for later in March. OS 3.1.3 fixes not only the iPhone but the iPod Touch as well. According to the release notes, there are four security vulnerabilities addressed in the update. One prevents buffer overflow from a maliciously crafted mp4 audio file, which may allow for arbitrary code execution.