January 24, 2007
NCTsoft NCTAudioFile2 ActiveX control is prone to a buffer-overflow vulnerability. The software fails to perform sufficient bounds-checking of user-supplied input before copying it to an insufficiently sized memory buffer.
NCTAudioEditor is a collection of ActiveX controls for manipulating audio data. Numerous audio software products use the vulnerable 'NCTAudioFile2.AudioFile' ActiveX component.
NCTAudioStudio 2.7.1, NCTAudioEditor 2.7.1, and NCTDialogicVoice 2.7.1 are affected by this vulnerability; other versions may be affected as well.
NOTE: Please see the vulnerable systems section for third-party products that are affected because they depend on this ActiveX control.
Set web browser security to disable the execution of script code or active content.
Disabling support for client-side scripting and active content may limit exposure to this issue. This is especially prudent for untrusted sites in the Internet Zone.
Do not use client software to access unknown or untrusted hosts from critical systems.
To reduce the likelihood of successful exploits, never visit sites of questionable integrity or follow links provided by unfamiliar or untrusted sources.
Do not accept communications that originate from unknown or untrusted sources.
Do not open or view email from unknown or untrusted sources. Configuring email clients to view messages as plain text will also mitigate this issue.
Implement multiple redundant layers of security.
Various memory-protection schemes (such as nonexecutable and randomly mapped memory segments) may hinder an attacker's ability to exploit this vulnerability to execute arbitrary code.
Run all software as a nonprivileged user with minimal access rights.
Perform all nonadministrative tasks, such as browsing the web, as an unprivileged user with minimal access rights.
Currently we are not aware of any vendor-supplied patches If you feel we are in error or if you are aware of more recent information, please mail us at: email@example.com.
Secunia Research and Will Dormann of CERT/CC are credited with the discovery of this vulnerability.
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