Ubuntu Security Update USN-5395-2: networkd-dispatcher regression

[LinuxBot]

USN-5395-1 fixed vulnerabilities in networkd-dispatcher. Unfortunately that update was incomplete and could introduce a regression. This update fixes the problem. We apologize for the inconvenience. Original advisory details: It was discovered that networkd-dispatcher incorrectly handled internal scripts. A local attacker could possibly use this issue to cause a race condition, escalate privileges and execute arbitrary code. (CVE-2022-29799, CVE-2022-29800)

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