CVE-2014-0045 Information

Description

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.

Reference

http://lists.opensuse.org/opensuse-updates/2014-02/msg00063.html http://mumble.info/security/Mumble-SA-2014-002.txt http://mumble.info/security/Mumble-SA-2014-004.txt http://osvdb.org/102905 http://osvdb.org/102958 http://www.debian.org/security/2014/dsa-2854 http://www.securityfocus.com/bid/65374