Ubuntu Security Update USN-8402-1: systemd vulnerabilities

[LinuxBot]

It was discovered that systemd-nspawn incorrectly handled certain optional configuration files. A local attacker could possibly use this issue to escape to the host system and execute arbitrary code. (CVE-2026-40226) It was discovered that systemd-resolved incorrectly validated DNSSEC records for signed domains. An attacker could possibly use this issue to manipulate DNS records. This issue only affected Ubuntu 22.04 LTS. (CVE-2023-7008)

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