Vulnerability in Canonical Ltd. Snapd

CVE-2021-44731

A race condition existed in the snapd 2.54.2 snap-confine binary when preparing a private mount namespace for a snap. This could allow a local attacker to gain root privileges by bind-mounting their own contents inside the snap's private m…

Vulnerability class: Race Condition

EPSS: 0.010 (57.4th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H.

Affected products

Weakness classification (CWE)

Public proof-of-concept exploits

References

Frequently asked questions

What is CVE-2021-44731?
CVE-2021-44731 is a high-severity vulnerability in Canonical Ltd. Snapd, classified under Concurrent Execution using Shared Resource with Improper Synchronization (Race Condition). CVSS score: 7.8/10. Published 2022-02-17.
How severe is CVE-2021-44731?
High severity. CVSS v3 base score is 7.8 out of 10.
Is CVE-2021-44731 known to be exploited?
4 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.