Vulnerability CVE-2009-1894
Published: 2009-07-17   Modified: 2012-02-13

Description:
Race condition in PulseAudio 0.9.9, 0.9.10, and 0.9.14 allows local users to gain privileges via vectors involving creation of a hard link, related to the application setting LD_BIND_NOW to 1, and then calling execv on the target of the /proc/self/exe symlink.

Type:

CWE-362

CVSS2 => (AV:L/AC:L/Au:N/C:C/I:C/A:C)

CVSS Base Score
Impact Subscore
Exploitability Subscore
7.2/10
10/10
3.9/10
Exploit range
Attack complexity
Authentication
Local
Low
No required
Confidentiality impact
Integrity impact
Availability impact
Complete
Complete
Complete
Affected software
Pulseaudio -> Pulseaudio 

 References:
http://blog.cr0.org/2009/07/old-school-local-root-vulnerability-in.html
http://security.gentoo.org/glsa/glsa-200907-13.xml
http://taviso.decsystem.org/research.html
http://www.akitasecurity.nl/advisory.php?id=AK20090602
http://www.debian.org/security/2009/dsa-1838
http://www.mandriva.com/security/advisories?name=MDVSA-2009:152
http://www.mandriva.com/security/advisories?name=MDVSA-2009:171
http://www.securityfocus.com/archive/1/505052/100/0/threaded
http://www.securityfocus.com/bid/35721
http://www.ubuntu.com/usn/usn-804-1
https://admin.fedoraproject.org/updates/pulseaudio-0.9.10-1.el5.2
https://bugzilla.redhat.com/show_bug.cgi?id=510071
https://exchange.xforce.ibmcloud.com/vulnerabilities/51804
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