CVE-2014-0045

The needSamples method in AudioOutputSpeech.cpp in the client in Mumble
1.2.4 and the 1.2.3 pre-release snapshots, Mumble for iOS 1.1 through
1.2.2, and MumbleKit before commit fd190328a9b24d37382b269a5674b0c0c7a7e36d
does not check the return value of the opus_decode_float function, which
allows remote attackers to cause a denial of service (crash) and possibly
execute arbitrary code via a crafted Opus voice packet, which triggers an
error in opus_decode_float, a conversion of a negative integer to an
unsigned integer, and a heap-based buffer over-read and over-write.

Bugs

• <http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=737739&gt;