Executive Summary

Summary
Title Pulseaudio: Privilege escalation
Informations
Name GLSA-200802-07 First vendor Publication 2008-02-13
Vendor Gentoo Last vendor Modification 2008-02-13
Severity (Vendor) High Revision N/A

Security-Database Scoring CVSS v3

Cvss vector : N/A
Overall CVSS Score NA
Base Score NA Environmental Score NA
impact SubScore NA Temporal Score NA
Exploitabality Sub Score NA
 
Calculate full CVSS 3.0 Vectors scores

Security-Database Scoring CVSS v2

Cvss vector : (AV:L/AC:L/Au:N/C:C/I:C/A:C)
Cvss Base Score 7.2 Attack Range Local
Cvss Impact Score 10 Attack Complexity Low
Cvss Expoit Score 3.9 Authentication None Required
Calculate full CVSS 2.0 Vectors scores

Detail

Synopsis

A vulnerability in pulseaudio may allow a local user to execute actions with escalated privileges.

Background

Pulseaudio is a networked sound server with an advanced plugin system.

Description

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.

Impact

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.

Workaround

There is no known workaround at this time.

Resolution

All Pulseaudio users should upgrade to the latest version:
# emerge --sync
# emerge --ask --oneshot --verbose ">=media-sound/pulseaudio-0.9.9"

References

[ 1 ] CVE-2008-0008 : http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2008-0008

Availability

This GLSA and any updates to it are available for viewing at the Gentoo Security Website:

http://security.gentoo.org/glsa/glsa-200802-07.xml

Original Source

Url : http://security.gentoo.org/glsa/glsa-200802-07.xml

CWE : Common Weakness Enumeration

% Id Name
100 % CWE-20 Improper Input Validation

OVAL Definitions

Definition Id: oval:org.mitre.oval:def:17781
 
Oval ID: oval:org.mitre.oval:def:17781
Title: USN-573-1 -- pulseaudio vulnerability
Description: It was discovered that PulseAudio did not properly drop privileges when running as a daemon.
Family: unix Class: patch
Reference(s): USN-573-1
CVE-2008-0008
 Version: 7
Platform(s): Ubuntu 7.04
Ubuntu 7.10
 Product(s): pulseaudio
Definition Synopsis:
Definition Id: oval:org.mitre.oval:def:20369
 
Oval ID: oval:org.mitre.oval:def:20369
Title: DSA-1476-1 pulseaudio - programming error
Description: Marcus Meissner discovered that the PulseAudio sound server performed insufficient checks when dropping privileges, which could lead to local privilege escalation.
Family: unix Class: patch
Reference(s): DSA-1476-1
CVE-2008-0008
 Version: 5
Platform(s): Debian GNU/Linux 4.0
 Product(s): pulseaudio
Definition Synopsis:
Definition Id: oval:org.mitre.oval:def:8015
 
Oval ID: oval:org.mitre.oval:def:8015
Title: DSA-1476 pulseaudio -- programming error
Description: Marcus Meissner discovered that the PulseAudio sound server performed insufficient checks when dropping privileges, which could lead to local privilege escalation. The old stable distribution (sarge) doesn't contain pulseaudio.
Family: unix Class: patch
Reference(s): DSA-1476
CVE-2008-0008
 Version: 3
Platform(s): Debian GNU/Linux 4.0
 Product(s): pulseaudio
Definition Synopsis:

CPE : Common Platform Enumeration

TypeDescriptionCount
Application 2

OpenVAS Exploits

Date Description
2009-04-09 Name : Mandriva Update for pulseaudio MDVSA-2008:027 (pulseaudio)
File : nvt/gb_mandriva_MDVSA_2008_027.nasl
2009-03-23 Name : Ubuntu Update for pulseaudio vulnerability USN-573-1
File : nvt/gb_ubuntu_USN_573_1.nasl
2009-02-17 Name : Fedora Update for pulseaudio FEDORA-2008-0963
File : nvt/gb_fedora_2008_0963_pulseaudio_fc8.nasl
2009-02-17 Name : Fedora Update for pulseaudio FEDORA-2008-0994
File : nvt/gb_fedora_2008_0994_pulseaudio_fc7.nasl
2008-09-24 Name : Gentoo Security Advisory GLSA 200802-07 (pulseaudio)
File : nvt/glsa_200802_07.nasl
2008-01-31 Name : Debian Security Advisory DSA 1476-1 (pulseaudio)
File : nvt/deb_1476_1.nasl

Open Source Vulnerability Database (OSVDB)

Id Description
42842 PulseAudio pa_drop_root Function Local Privilege Escalation

Nessus® Vulnerability Scanner

Date Description
2009-04-23 Name : The remote Mandriva Linux host is missing one or more security updates.
File : mandriva_MDVSA-2008-027.nasl - Type : ACT_GATHER_INFO
2008-02-14 Name : The remote Gentoo host is missing one or more security-related patches.
File : gentoo_GLSA-200802-07.nasl - Type : ACT_GATHER_INFO
2008-02-01 Name : The remote Ubuntu host is missing one or more security-related patches.
File : ubuntu_USN-573-1.nasl - Type : ACT_GATHER_INFO
2008-01-29 Name : The remote Debian host is missing a security-related update.
File : debian_DSA-1476.nasl - Type : ACT_GATHER_INFO
2008-01-27 Name : The remote Fedora host is missing a security update.
File : fedora_2008-0963.nasl - Type : ACT_GATHER_INFO
2008-01-27 Name : The remote Fedora host is missing a security update.
File : fedora_2008-0994.nasl - Type : ACT_GATHER_INFO

Alert History

If you want to see full details history, please login or register.
0
Date Informations
2014-02-17 11:35:33
  • Multiple Updates