USN-2696-1

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USN-2696-1

Summary: openjdk-7 vulnerabilities

Details: Several vulnerabilities were discovered in the OpenJDK JRE related to information disclosure, data integrity, and availability. An attacker could exploit these to cause a denial of service or expose sensitive data over the network. (CVE-2015-2590, CVE-2015-2628, CVE-2015-4731, CVE-2015-4732, CVE-2015-4733, CVE-2015-4760, CVE-2015-4748) Several vulnerabilities were discovered in the cryptographic components of the OpenJDK JRE. An attacker could exploit these to expose sensitive data over the network. (CVE-2015-2601, CVE-2015-2808, CVE-2015-4000, CVE-2015-2625, CVE-2015-2613) As a security improvement, this update modifies OpenJDK behavior to disable RC4 TLS/SSL cipher suites by default. As a security improvement, this update modifies OpenJDK behavior to reject DH key sizes below 768 bits by default, preventing a possible downgrade attack. Several vulnerabilities were discovered in the OpenJDK JRE related to information disclosure. An attacker could exploit these to expose sensitive data over the network. (CVE-2015-2621, CVE-2015-2632) A vulnerability was discovered with how the JNDI component of the OpenJDK JRE handles DNS resolutions. A remote attacker could exploit this to cause a denial of service. (CVE-2015-4749)

References: https://ubuntu.com/security/notices/USN-2696-1, https://ubuntu.com/security/CVE-2015-2590, https://ubuntu.com/security/CVE-2015-2601, https://ubuntu.com/security/CVE-2015-2613, https://ubuntu.com/security/CVE-2015-2621, https://ubuntu.com/security/CVE-2015-2625, https://ubuntu.com/security/CVE-2015-2628, https://ubuntu.com/security/CVE-2015-2632, https://ubuntu.com/security/CVE-2015-2808, https://ubuntu.com/security/CVE-2015-4000, https://ubuntu.com/security/CVE-2015-4731, https://ubuntu.com/security/CVE-2015-4732, https://ubuntu.com/security/CVE-2015-4733, https://ubuntu.com/security/CVE-2015-4748, https://ubuntu.com/security/CVE-2015-4749, https://ubuntu.com/security/CVE-2015-4760