VDB
CVE-2021-44730
CVE-2021-44730
PUBLISHED
CVSS 6.900000095367432 MEDIUM
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
EPSS 0.35% · 28.0th percentile
Risk Scores
CVSS 2.0
6.900000095367432
EPSS Score
0.35%
28.0th percentile
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| debian | debian_linux | 10.0, 11.0 |
| Canonical Ltd. | snapd | * |
| canonical | ubuntu_linux | 21.10, 20.04, 18.04 |
| fedoraproject | fedora | 34, 35 |
| canonical | snapd | 0 |
Timeline
- Feb 17, 2022 CVE Published
- Feb 18, 2022 EPSS Score
- Apr 11, 2022 EPSS Score
- Jun 3, 2022 EPSS Score
- Jul 26, 2022 EPSS Score
- Sep 16, 2022 EPSS Score
- Nov 7, 2022 EPSS Score
- Dec 30, 2022 EPSS Score
- Feb 20, 2023 EPSS Score
- Mar 7, 2023 EPSS Score
- Apr 13, 2023 EPSS Score
- Jun 4, 2023 EPSS Score
References
- [oss-security] 20220218 CVE-2021-4120: Insufficient validation of snap content interface and layout paths mailing-list
- FEDORA-2022-82bea71e5a vendor-advisory
- https://ubuntu.com/security/notices/USN-5292-1 url
- FEDORA-2022-5df8b52ba4 vendor-advisory
- DSA-5080 vendor-advisory
- [oss-security] 20220223 Re: CVE-2021-44731: Race condition in snap-confine's setup_private_mount() mailing-list
- https://nvd.nist.gov/vuln/detail/CVE-2021-44730 advisory
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/3QTBN7LLZISXIA4KU4UKDR27Q5PXDS2U url
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/XCGHG6LJAVJJ72TMART6A7N4Z6MSTGI7 url