GLSA-200802-07 : Pulseaudio: Privilege escalation
High Nessus Plugin ID 31085
SynopsisThe remote Gentoo host is missing one or more security-related patches.
DescriptionThe remote host is affected by the vulnerability described in GLSA-200802-07 (Pulseaudio: Privilege escalation)
Marcus Meissner from SUSE reported that the pa_drop_root() function does not properly check the return value of the system calls setuid(), seteuid(), setresuid() and setreuid() when dropping its privileges.
A local attacker could cause a resource exhaustion to make the system calls fail, which would cause Pulseaudio to run as root. The attacker could then perform actions with root privileges.
There is no known workaround at this time.
SolutionAll Pulseaudio users should upgrade to the latest version:
# emerge --sync # emerge --ask --oneshot --verbose '>=media-sound/pulseaudio-0.9.9'