CVE-2009-0035 — alsa-utils 1

alsa-utils 1.0.19 and later versions allows local users to overwrite arbitrary files via a symlink attack via the /usr/bin/alsa-info and /usr/bin/alsa-info.sh scripts.

01What is this vulnerability?

alsa-utils 1.0.19 and later versions allows local users to overwrite arbitrary files via a symlink attack via the /usr/bin/alsa-info and /usr/bin/alsa-info.sh scripts.

02Affected products

Vendor	Product	Versions
alsa-driver	alsa	driver — 1.0.19 and later

03Active exploitation status

Not currently listed on the CISA Known Exploited Vulnerabilities (KEV) catalog. EPSS is the best forward-looking signal — see the EPSS row above.

04Recommended remediation

• Patch to a fixed version listed in the vendor advisory (see references below).
• Mitigate with WAF rules, network egress filters, or feature flags where the patch is not yet available.
• Hunt historical logs for exploitation indicators — see Detection signatures below.

05Technical details

For the full vendor write-up, exploit chains, and reference implementations, see the references list in section 09.

06Detection signatures

Open the Sigma generator with a pre-filled prompt for this CVE to draft a starting detection in your stack of choice:

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07Related CVEs

No directly-cited follow-up CVEs in the KB record for this advisory. The references list in section 09 carries the vendor cross-references.

08Timeline

• Published: 2019-11-09T02:02:21.000Z
• Last modified: 2024-08-07T04:17:10.368Z

09References

• security-tracker.debian.org — https://security-tracker.debian.org/tracker/CVE-2009-0035
• bugzilla.redhat.com — https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2009-0035
• access.redhat.com — https://access.redhat.com/security/cve/cve-2009-0035