PulseAudio pa_drop_root function privilege escalation
| pulseaudio-padroproot-privilege-escalation (39992) |  High Risk |
Description:
PulseAudio could allow a local attacker to gain elevated privileges, caused by a failure to drop privileges in the pa_drop_root() function. An attacker could exploit this vulnerability using unknown attack vectors to gain root privileges.
*CVSS:
| Base Score: | 4.4 |
| Access Vector: | Local |
| Access Complexity: | Medium |
| Authentication: | None |
| Confidentiality Impact: | Partial |
| Integrity Impact: | Partial |
| Availability Impact: | Partial |
| Temporal Score: | 3.3 |
| Exploitability: | Unproven |
| Remediation Level: | Official-Fix |
| Report Confidence: | Confirmed |
Consequences:
Gain Privileges
Remedy:
Upgrade to the latest version of PulseAudio (0.9.9 or later), available from the PulseAudio Web site. See References.
References:
- PulseAudio Web site: PulseAudio - Trac.
- BID-27449: PulseAudio Local Privilege Escalation Vulnerability
- CVE-2008-0008: The pa_drop_root function in PulseAudio 0.9.8, and a certain 0.9.9 build, does not check return values from (1) setresuid, (2) setreuid, (3) setuid, and (4) seteuid calls when attempting to drop privileges, which might allow local users to gain privileges by causing those calls to fail via attacks such as resource exhaustion.
- DSA-1476: pulseaudio -- programming error
- GLSA-200802-07: Pulseaudio: Privilege escalation
- MDVSA-2008:027: Updated pulseaudio packages fix local root vulnerability
- USN-573-1: PulseAudio vulnerability
- VUPEN/ADV-2008-0283: PulseAudio pa_drop_root() Function Privilege Escalation Vulnerability
Platforms Affected:
- Canonical Ubuntu 7.04
- Canonical Ubuntu 7.10
- Debian Debian Linux 4.0
- Gentoo Linux
- MandrakeSoft Mandrake Linux 2007.1 X86_64
- MandrakeSoft Mandrake Linux 2007.1
- MandrakeSoft Mandrake Linux 2008.0
- MandrakeSoft Mandrake Linux 2008.0 X86_64
- PulseAudio PulseAudio prior to 0.9.9
Reported:
Jan 24, 2008
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The information within this database may change without notice. Use of this information constitutes acceptance for use in an AS IS condition. There are NO warranties, implied or otherwise, with regard to this information or its use. Any use of this information is at the user's risk. In no event shall IBM be held liable for any damages whatsoever arising out of or in connection with the use or spread of this information.