Ubuntu Security Notice 3754-1 - Ralf Spenneberg discovered that the ext4 implementation in the Linux kernel did not properly validate meta block groups. An attacker with physical access could use this to specially craft an ext4 image that causes a denial of service. It was discovered that an information disclosure vulnerability existed in the ACPI implementation of the Linux kernel. A local attacker could use this to expose sensitive information. Various other issues were also addressed.
2e3daae88eb6c229159a61e708a2ae19ecdc551119063721b0673a3449c498f9Ubuntu Security Notice 3507-1 - Mohamed Ghannam discovered that a use-after-free vulnerability existed in the Netlink subsystem in the Linux kernel. A local attacker could use this to cause a denial of service or possibly execute arbitrary code. It was discovered that the Linux kernel did not properly handle copy-on- write of transparent huge pages. A local attacker could use this to cause a denial of service or possibly gain administrative privileges. Various other issues were also addressed.
69cb8bd23eccd5b890d722fba3cdc82d3096243ff4f4b5537c3e96d1b5de40daUbuntu Security Notice 3485-3 - It was discovered that a race condition existed in the ALSA subsystem of the Linux kernel when creating and deleting a port via ioctl. A local attacker could use this to cause a denial of service or possibly execute arbitrary code. Eric Biggers discovered that the key management subsystem in the Linux kernel did not properly restrict adding a key that already exists but is uninstantiated. A local attacker could use this to cause a denial of service or possibly execute arbitrary code. Various other issues were also addressed.
7da5419563f06df09537b920b44d8c50ddccc6b040d38e604644a47cae423f6bUbuntu Security Notice 3485-2 - USN-3485-1 fixed vulnerabilities in the Linux kernel for Ubuntu 16.04 LTS. This update provides the corresponding updates for the Linux Hardware Enablement kernel from Ubuntu 16.04 LTS for Ubuntu 14.04 LTS. It was discovered that a race condition existed in the ALSA subsystem of the Linux kernel when creating and deleting a port via ioctl. A local attacker could use this to cause a denial of service or possibly execute arbitrary code. Various other issues were also addressed.
597350ff836581dc17ad6aa5bec80c72eac0162d390d76de34d29c1839a5fbb7Ubuntu Security Notice 3485-1 - It was discovered that a race condition existed in the ALSA subsystem of the Linux kernel when creating and deleting a port via ioctl. A local attacker could use this to cause a denial of service or possibly execute arbitrary code. Eric Biggers discovered that the key management subsystem in the Linux kernel did not properly restrict adding a key that already exists but is uninstantiated. A local attacker could use this to cause a denial of service or possibly execute arbitrary code. Various other issues were also addressed.
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