Ubuntu Security Update USN-7668-1: OpenJDK 21 vulnerabilities

[LinuxBot]

It was discovered that the 2D component of OpenJDK 21 did not properly manage memory under certain circumstances. An attacker could possibly use this issue to cause a denial of service or execute arbitrary code. (CVE-2025-30749, CVE-2025-50106) Mashroor Hasan Bhuiyan discovered that the JSSE component of OpenJDK 21 did not properly manage TLS 1.3 handshakes under certain circumstances. An attacker could possibly use this issue to obtain sensitive information. (CVE-2025-30754) Martin van Wingerden and Violeta Georgieva of Broadcom discovered that the Networking component of OpenJDK 24 did not properly manage network connections under certain circumstances. An attacker could possibly use this issue to obtain sensitive information. (CVE-2025-50059)

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