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CVE-2016-7914

Status Candidate

Overview

The assoc_array_insert_into_terminal_node function in lib/assoc_array.c in the Linux kernel before 4.5.3 does not check whether a slot is a leaf, which allows local users to obtain sensitive information from kernel memory or cause a denial of service (invalid pointer dereference and out-of-bounds read) via an application that uses associative-array data structures, as demonstrated by the keyutils test suite.

Related Files

Ubuntu Security Notice USN-3406-2
Posted Aug 29, 2017
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 3406-2 - USN-3406-1 fixed vulnerabilities in the Linux kernel for Ubuntu 14.04 LTS. This update provides the corresponding updates for the Linux Hardware Enablement kernel from Ubuntu 14.04 LTS for Ubuntu 12.04 ESM. It was discovered that an out of bounds read vulnerability existed in the associative array implementation in the Linux kernel. A local attacker could use this to cause a denial of service or expose sensitive information. Various other issues were also addressed.

tags | advisory, denial of service, kernel, local, vulnerability
systems | linux, ubuntu
advisories | CVE-2016-7914, CVE-2017-7261, CVE-2017-7273, CVE-2017-7487, CVE-2017-7495, CVE-2017-7616
MD5 | bcb9b54a8a5556c6daf2c16f77e97ad7
Ubuntu Security Notice USN-3406-1
Posted Aug 28, 2017
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 3406-1 - It was discovered that an out of bounds read vulnerability existed in the associative array implementation in the Linux kernel. A local attacker could use this to cause a denial of service or expose sensitive information. It was discovered that a NULL pointer dereference existed in the Direct Rendering Manager driver for VMWare devices in the Linux kernel. A local attacker could use this to cause a denial of service. Various other issues were also addressed.

tags | advisory, denial of service, kernel, local
systems | linux, ubuntu
advisories | CVE-2016-7914, CVE-2017-7261, CVE-2017-7273, CVE-2017-7487, CVE-2017-7495, CVE-2017-7616
MD5 | ab3d93c5b082693198c7dd03e2550762
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