High severity7.8NVD Advisory· Published Feb 17, 2022· Updated Jun 17, 2026
CVE-2021-44730
CVE-2021-44730
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
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
10cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:*+ 2 more
- cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:*
- cpe:2.3:o:canonical:ubuntu_linux:20.04:*:*:*:lts:*:*:*
- cpe:2.3:o:canonical:ubuntu_linux:21.10:*:*:*:*:*:*:*
cpe:2.3:o:fedoraproject:fedora:34:*:*:*:*:*:*:*+ 1 more
- cpe:2.3:o:fedoraproject:fedora:34:*:*:*:*:*:*:*
- cpe:2.3:o:fedoraproject:fedora:35:*:*:*:*:*:*:*
- Canonical Ltd./snapdv5Range: unspecified
Patches
Vulnerability mechanics
References
6- ubuntu.com/security/notices/USN-5292-1nvdPatchVendor Advisory
- www.openwall.com/lists/oss-security/2022/02/18/2nvdMailing ListThird Party Advisory
- www.openwall.com/lists/oss-security/2022/02/23/1nvdMailing ListThird Party Advisory
- www.debian.org/security/2022/dsa-5080nvdIssue TrackingThird Party Advisory
- lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/3QTBN7LLZISXIA4KU4UKDR27Q5PXDS2U/nvd
- lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/XCGHG6LJAVJJ72TMART6A7N4Z6MSTGI7/nvd
News mentions
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