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Mandriva: Subject: [Security Announce] [ MDVA-2008:148 ] pulseaudio

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Special Forums Cybersecurity Security Advisories (RSS) Mandriva: Subject: [Security Announce] [ MDVA-2008:148 ] pulseaudio
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Old 10-17-2008
Mandriva: Subject: [Security Announce] [ MDVA-2008:148 ] pulseaudio
LinuxSecurity.com: Some issues relating to thread cancellation have been discovered in the pulseaudio package shipped with Mandriva Linux 2009.0. These issues could result in the crash of an application acting as a pulseaudio client. This condition is greatly exacerbated when the client is unable to connect to the pulseaudio server. Due to the fact that libcanberra is used to play event sounds in GTK apps, this problem could present itself when running GTK applications as root which, under some circumstances, was unable to connect to the user's pulseaudio daemon.

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LEARN ABOUT CENTOS

pulse-client.conf

pulse-client.conf(5)						File Formats Manual					      pulse-client.conf(5)

NAME

       pulse-client.conf - PulseAudio client configuration file

SYNOPSIS

       ~/.config/pulse/client.conf

       /etc/pulse/client.conf

DESCRIPTION

       The  PulseAudio client library reads configuration directives from a file ~/.config/pulse/client.conf on startup and when that file doesn't
       exist from /etc/pulse/client.conf.

       The configuration file is a simple collection of variable declarations. If the configuration file  parser  encounters  either  ;  or  #	it
       ignores the rest of the line until its end.

       For the settings that take a boolean argument the values true, yes, on and 1 are equivalent, resp. false, no, off, 0.

DIRECTIVES

       default-sink=  The default sink to connect to. If specified overwrites the setting in the daemon. The environment variable $PULSE_SINK how-
       ever takes precedence.

       default-source= The default source to connect to. If specified overwrites the setting in the daemon. The environment variable $PULSE_SOURCE
       however takes precedence.

       default-server= The default sever to connect to. The environment variable $PULSE_SERVER takes precedence.

       autospawn= Autospawn a PulseAudio daemon when needed. Takes a boolean value, defaults to yes.

       daemon-binary= Path to the PulseAudio daemon to run when autospawning. Defaults to a path configured at compile time.

       extra-arguments= Extra arguments to pass to the PulseAudio daemon when autospawning. Defaults to --log-target=syslog

       cookie-file= Specify the path to the PulseAudio authentication cookie. Defaults to ~/.config/pulse/cookie.

       enable-shm= Enable data transfer via POSIX shared memory. Takes a boolean argument, defaults to yes.

       shm-size-bytes=	Sets the shared memory segment size for clients, in bytes. If left unspecified or is set to 0 it will default to some sys-
       tem-specific default, usually 64 MiB. Please note that usually there is no need to change this value, unless you are running an	OS  kernel
       that does not do memory overcommit.

       auto-connect-localhost=	Automatically try to connect to localhost via IP. Enabling this is a potential security hole since connections are
       only authenticated one-way and a rogue server might hence fool a client into sending it its private (e.g. VoIP call) data. This was enabled
       by default on PulseAudio version 0.9.21 and older. Defaults to no.

       auto-connect-display=  Automatically  try  to  connect  to the host X11's $DISPLAY variable is set to. The same security issues apply as to
       auto-connect-localhost=. Defaults to no.

AUTHORS

       The PulseAudio Developers <pulseaudio-discuss (at) lists (dot) freedesktop (dot) org>; PulseAudio is available from http://pulseaudio.org/

SEE ALSO

       pulse-daemon.conf(5), pulseaudio(1)

Manuals 							       User						      pulse-client.conf(5)