Name: CVE-2021-44730: Improper Link Resolution Before File Access
Creator: Rapid7
Published: 2022-02-17T00:00:00.000Z
License: https://www.rapid7.com/legal/website-terms-of-use/
Keywords: CVE, CVE-2021-44730, CWE-59, CVSS 7.8, EPSS 0.00039

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

CVSS Details

CVSS 3.1 Base Score: 7.8
CVSS 3.1 Vector: (CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H)

Covered by Rapid7

Product	Vendor Advisory	Solution File	Added	Published
Debian	—	Upgrade snapd	Feb 23, 2022	Feb 17, 2022
Ubuntu	—	Upgrade snap-confineUpgrade snapdUpgrade snapd (Ubuntu Pro)Upgrade snap-confine (Ubuntu Pro)	Feb 18, 2022	Feb 17, 2022

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CVSS Details

Covered by Rapid7

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