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CVE-2009-1894

7.2 · HIGH

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…

Published Jul 17, 2009pulseaudioCWE-362EPSS 0.74%

Overview

CVE-2009-1894 is a high-severity vulnerability affecting pulseaudio pulseaudio. It was published on July 17, 2009 and has a CVSS 2.0 base score of 7.2 (HIGH).

This vulnerability has a CVSS 2.0 base score of 7.2, rated HIGH. It requires local or adjacent network access to exploit. No authentication or special privileges are required for exploitation.

Technical 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.

Remediation

Check the references section for vendor advisories and patches from pulseaudio. Update pulseaudio to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

Affected products

VendorProductVersionsStatus

References

Refblog.cr0.org/2009/07/old-school-local-root-vulnerability-in.htmlRefsecunia.com/advisories/35868Refsecunia.com/advisories/35886Refsecunia.com/advisories/35896Refsecurity.gentoo.org/glsa/glsa-200907-13.xmlReftaviso.decsystem.org/research.htmlRefwww.akitasecurity.nl/advisory.php?id=AK20090602Refwww.debian.org/security/2009/dsa-1838Refwww.mandriva.com/security/advisories?name=MDVSA-2009:152Refwww.mandriva.com/security/advisories?name=MDVSA-2009:171

How CyberStrike helps

Frequently asked questions

What is CVE-2009-1894?

CVE-2009-1894 is a high-severity vulnerability affecting pulseaudio pulseaudio. It was published on July 17, 2009 and has a CVSS 2.0 base score of 7.2 (HIGH).

How severe is CVE-2009-1894?

This vulnerability has a CVSS 2.0 base score of 7.2, rated HIGH. It requires local or adjacent network access to exploit. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2009-1894?

Check the references section for vendor advisories and patches from pulseaudio. Update pulseaudio to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2009-1894?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2009-1894 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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