Ubuntu Security Update USN-8319-1: Libgcrypt vulnerabilities

[LinuxBot]

It was discovered that Libgcrypt incorrectly handled crafted ECDH ciphertext. An attacker could possibly use this issue to cause Libgcrypt to crash, resulting in a denial of service. (CVE-2026-41989) It was discovered that Libgcrypt incorrectly handled Dilithium signing. An attacker could possibly use this issue to cause Libgcrypt to crash, resulting in a denial of service. This issue only affected Ubuntu 26.04 LTS. (CVE-2026-41990)

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