Ubuntu Security Notice USN-5651-1 Posted Oct 4, 2022 Authored by Ubuntu | Site security.ubuntu.com Ubuntu Security Notice 5651-1 – Lahav Schlesinger discovered that strongSwan incorrectly handled certain OCSP URIs and and CRL distribution points in certificates. A remote attacker could possibly use this issue to initiate IKE_SAs and send crafted certificates that contain URIs pointing to servers under their control, which can lead to a denial-of-service attack.

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