VULNERABILITY INTELLIGENCE
CVE-2021-44730
CVSS score7.8 HIGH
EPSS probability0.35%
CISA KEVNot currently listed
Published2022-02-17
Last modified2026-06-17
CVSS vectorCVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H
Description
snapd 2.54.2 did not properly validate the location of the snap-confine binary. A local attacker who can hardlink this binary to another location to cause snap-confine to execute other arbitrary binaries and hence gain privilege escalation. Fixed in snapd versions 2.54.3+18.04, 2.54.3+20.04 and 2.54.3+21.10.1
Weakness classification
- security@ubuntu.com: CWE-59
- nvd@nist.gov: CWE-59
Primary references
- security@ubuntu.com — Mailing List, Third Party Advisory
- security@ubuntu.com — Mailing List, Third Party Advisory
- security@ubuntu.com
- security@ubuntu.com
- security@ubuntu.com — Patch, Vendor Advisory
- security@ubuntu.com — Issue Tracking, Third Party Advisory
- af854a3a-2127-422b-91ae-364da2661108 — Mailing List, Third Party Advisory
- af854a3a-2127-422b-91ae-364da2661108 — Mailing List, Third Party Advisory
- af854a3a-2127-422b-91ae-364da2661108
- af854a3a-2127-422b-91ae-364da2661108
- af854a3a-2127-422b-91ae-364da2661108 — Patch, Vendor Advisory
- af854a3a-2127-422b-91ae-364da2661108 — Issue Tracking, Third Party Advisory