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Last updated: 5/31/2016 8:56:24 PM

CVE Publication rate: 19.57

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National Cyber Awareness System

Vulnerability Summary for CVE-2009-1894

Original release date: 07/17/2009
Last revised: 08/12/2009


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.


CVSS Severity (version 2.0):
CVSS v2 Base Score: 7.2 HIGH
Impact Subscore: 10.0
Exploitability Subscore: 3.9
CVSS Version 2 Metrics:
Access Vector: Locally exploitable
Access Complexity: Low
Authentication: Not required to exploit
Impact Type: Allows unauthorized disclosure of information; Allows unauthorized modification; Allows disruption of service

References to Advisories, Solutions, and Tools

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External Source: CONFIRM
Name: https://bugzilla.redhat.com/show_bug.cgi?id=510071
Type: Patch Information; Exploit
External Source: BID
Name: 35721
Type: Patch Information; Exploit
External Source: DEBIAN
Name: DSA-1838
External Source: CONFIRM
Name: https://admin.fedoraproject.org/updates/pulseaudio-0.9.10-1.el5.2
External Source: MISC
Name: http://www.akitasecurity.nl/advisory.php?id=AK20090602
External Source: GENTOO
Name: GLSA-200907-13
External Source: MISC
Name: http://taviso.decsystem.org/research.html
External Source: UBUNTU
Name: USN-804-1
External Source: XF
Name: pulseaudio-suid-privilege-escalation(51804)
External Source: MANDRIVA
Name: MDVSA-2009:152
External Source: MISC
Name: http://blog.cr0.org/2009/07/old-school-local-root-vulnerability-in.html
External Source: BUGTRAQ
Name: 20090717 PulseAudio local race condition privilege escalation vulnerability
External Source: MANDRIVA
Name: MDVSA-2009:171

Technical Details

Vulnerability Type (View All)