USN-4453-1: OpenJDK 8 vulnerabilities

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Ubuntu security notices

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Johannes Kuhn discovered that OpenJDK 8 incorrectly handled access control contexts. An attacker could possibly use this issue to execute arbitrary code. (CVE-2020-14556) Philippe Arteau discovered that OpenJDK 8 incorrectly verified names in TLS server's X.509 certificates. An attacker could possibly use this issue to obtain sensitive information. (CVE-2020-14577) It was discovered that OpenJDK 8 incorrectly handled exceptions in DerInputStream class and in the DerValue.equals() method. An attacker could possibly use this issue to cause a denial of service. (CVE-2020-14578, CVE-2020-14579) It was discovered that OpenJDK 8 incorrectly handled image files. An attacker could possibly use this issue to obtain sensitive information. (CVE-2020-14581) Markus Loewe discovered that OpenJDK 8 incorrectly handled concurrent access in java.nio.Buffer class. An attacker could use this issue to bypass sandbox restrictions. (CVE-2020-14583) It was discovered that OpenJDK 8 incorrectly handled transformation of images. An attacker could possibly use this issue to bypass sandbox restrictions and insert, edit or obtain sensitive information. (CVE-2020-14593) Roman Shemyakin discovered that OpenJDK 8 incorrectly handled XML files. An attacker could possibly use this issue to insert, edit or obtain sensitive information. (CVE-2020-14621)

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