Unrated severityNVD Advisory· Published Feb 17, 2022· Updated Aug 3, 2024
snapd could be made to bypass intended access restrictions through snap content interfaces and layout paths
CVE-2021-4120
Description
snapd 2.54.2 fails to perform sufficient validation of snap content interface and layout paths, resulting in the ability for snaps to inject arbitrary AppArmor policy rules via malformed content interface and layout declarations and hence escape strict snap confinement. 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
2- Canonical Ltd./snapdv5Range: unspecified
Patches
Vulnerability mechanics
References
5- lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/3QTBN7LLZISXIA4KU4UKDR27Q5PXDS2U/mitrevendor-advisoryx_refsource_FEDORA
- lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/XCGHG6LJAVJJ72TMART6A7N4Z6MSTGI7/mitrevendor-advisoryx_refsource_FEDORA
- www.openwall.com/lists/oss-security/2022/02/18/2mitremailing-listx_refsource_MLIST
- bugs.launchpad.net/snapd/+bug/1949368mitrex_refsource_MISC
- ubuntu.com/security/notices/USN-5292-1mitrex_refsource_MISC
News mentions
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