USN-3160-1

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USN-3160-1

Summary: linux vulnerabilities

Details: CAI Qian discovered that shared bind mounts in a mount namespace exponentially added entries without restriction to the Linux kernel's mount table. A local attacker could use this to cause a denial of service (system crash). (CVE-2016-6213) It was discovered that a race condition existed in the procfs environ_read function in the Linux kernel, leading to an integer underflow. A local attacker could use this to expose sensitive information (kernel memory). (CVE-2016-7916)

References: https://ubuntu.com/security/notices/USN-3160-1, https://ubuntu.com/security/CVE-2016-6213, https://ubuntu.com/security/CVE-2016-7916