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Ubuntu: Security Advisory for firejail (USN-5141-1)
Information
Severity
Severity
Medium
Family
Family
Ubuntu Local Security Checks
CVSSv2 Base
CVSSv2 Base
6.9
CVSSv2 Vector
CVSSv2 Vector
AV:L/AC:M/Au:N/C:C/I:C/A:C
Solution Type
Solution Type
Vendor Patch
Created
Created
2 years ago
Modified
Modified
2 years ago
Summary
The remote host is missing an update for the 'firejail' package(s) announced via the USN-5141-1 advisory.
Insight
Insight
Roman Fiedler discovered that a race condition existed in Firejail when using OverlayFS to prevent writes to the underlying file system. A local attacker could use this to gain administrative privileges. Note: this update disables support for OverlayFS in Firejail.
Affected Software
Affected Software
'firejail' package(s) on Ubuntu 20.04 LTS.
Detection Method
Detection Method
Checks if a vulnerable package version is present on the target host.
Solution
Solution
Please install the updated package(s).