* SECURITY UPDATE: Multiple integer/buffer overflows.
* xpdf/Stream.cc, DCTStream::readBaselineSOF(),
  DCTStream::readProgressiveSOF(), DCTStream::readScanInfo():
  - Check numComps for invalid values.
  - http://www.idefense.com/application/poi/display?id=342&type=vulnerabilities
  - CVE-2005-3191
* xpdf/Stream.cc, StreamPredictor::StreamPredictor():
  - Check rowBytes for invalid values.
  - http://www.idefense.com/application/poi/display?id=344&type=vulnerabilities
  - CVE-2005-3192
* xpdf sources do not contain JPXStream.cc, and are thus
  not vulnerable against CVE-2005-3193