BlackBerry Updates Attachment Service PDF Security Advisory
RIM has released version 4.1 Service Pack 6 (4.1.6) to address the vulnerability, giving an alternative to their prior suggested workaround of blocking the processing of PDF files:
http://www.blackberry.com/btsc/dynamickc.do?externalId=KB15766&sliceId=SAL_Public&command=show&forward=nonthreadedKC&kcId=KB15766
Download the new version here:
http://www.blackberry.com/go/serverdownloads