QID 377800

Date Published: 2022-12-01

QID 377800: Snapd Race Condition Vulnerability

A race condition existed in snap-confine, a SUID-root program installed by default on Ubuntu.

A local attacker could race against snap-confine, retain control over /tmp/snap.$SNAP_NAME, and eventually obtain full root privileges.
A combination of two vulnerabilities (CVE-2022-41973 and CVE-2022-41974) in multipathd package, with the third vulnerability in snap-confine package, could allow an attacker to obtain full root privileges on Ubuntu Server 22.04

QID Detection Logic (authenticated):
This QID looks for the vulnerable instance of snap-confine using the pattern used in snap-confine package. If it finds the vulnerable instance, it will report the path to those instances.

Successful exploitation of the security flaw in CVE-2022-41973 and CVE-2022-41974, bound by this vulnerability (CVE-2022-3328), lets any unprivileged user gain root privileges on the vulnerable device.

A local attacker could race against snap-confine, retain control over /tmp/snap.$SNAP_NAME, and eventually obtain full root privileges.

  • CVSS V3 rated as High - 7.3 severity.
  • CVSS V2 rated as High - 7.2 severity.
    • Solution
    Refer to security advisory Security release 2.57.6 for updates and patch information.
    Vendor References

    CVEs related to QID 377800

    CVE-2022-3328 |
    Software Advisories
    Advisory ID Software Component Link
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