snapcore snapd security bypass | CVE-2021-4120
NAME
snapcore snapd security bypass
- Platforms Affected:
snapcore snapd 2.54.2 - Risk Level:
8.2 - Exploitability:
Unproven - Consequences:
Bypass Security
DESCRIPTION
snapcore snapd could allow a local authenticated attacker to bypass security restrictions, caused by improper validation of snap content interface and layout paths. By using specially-crafted content interface and layout declarations, an attacker could exploit this vulnerability to inject arbitrary AppArmor policy rules.
CVSS 3.0 Information
- Privileges Required: Low
- User Interaction: Required
- Scope: Changed
- Access Vector: Local
- Access Complexity: Low
- Confidentiality Impact: High
- Integrity Impact: High
- Availability Impact: High
- Remediation Level: Official Fix
MITIGATION
Upgrade to the latest version of snapd (2.54.3or later), available from the snapd GIT Repository. See References.
- Reference Link:
https://seclists.org/oss-sec/2022/q1/145 - Reference Link:
https://github.com/snapcore/snapd/releases/tag/2.54.3
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