PulseAudio 0.9.5 allows remote attackers to cause a denial of service (daemon crash) via (1) a PAPSTREAMDESCRIPTORLENGTH value of FRAMESIZEMAXALLOW sent on TCP port 9875, which triggers a p->export assertion failure in doread; (2) a PAPSTREAMDESCRIPTORLENGTH value of 0 sent on TCP port 9875, which triggers a length assertion failure in pamemblocknew; or (3) an empty packet on UDP port 9875, which triggers a t assertion failure in pasdpparse; and allows remote authenticated users to cause a denial of service (daemon crash) via a crafted packet on TCP port 9875 that (4) triggers a maxlength assertion failure in pamemblockqnew, (5) triggers a size assertion failure in paxmalloc, or (6) plays a certain sound file.