CVE-2022-3328 — Race condition in snap-confine's must_mkdir_and_open_with_perms()

Race condition in snap-confine's must_mkdir_and_open_with_perms()

01What is this vulnerability?

Race condition in snap-confine's must_mkdir_and_open_with_perms()

02Affected products

Vendor	Product	Versions
Canonical Ltd.	snapd	0

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

Ask SARA in chat to draft a starting detection for this CVE in your stack of choice.

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: 2024-01-08T18:04:10.534Z
• Last modified: 2025-06-03T14:35:04.952Z

09References

• cve.mitre.org — https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-3328
• ubuntu.com — https://ubuntu.com/security/notices/USN-5753-1