Ubuntu Security Notice 3470-2 - USN-3470-1 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. Qian Zhang discovered a heap-based buffer overflow in the tipc_msg_build function in the Linux kernel. A local attacker could use to cause a denial of service or possibly execute arbitrary code with administrative privileges. Various other issues were also addressed.
45cdfddce64c932d022da74ac84e9b861d656767a40b616a21399ad5537f8eddUbuntu Security Notice 3468-2 - USN-3468-1 fixed vulnerabilities in the Linux kernel for Ubuntu 17.04. This update provides the corresponding updates for the Linux Hardware Enablement kernel from Ubuntu 17.04 for Ubuntu 16.04 LTS. It was discovered that the KVM subsystem in the Linux kernel did not properly bound guest IRQs. A local attacker in a guest VM could use this to cause a denial of service. It was discovered that the Flash-Friendly File System implementation in the Linux kernel did not properly validate superblock metadata. A local attacker could use this to cause a denial of service or possibly execute arbitrary code. Various other issues were also addressed.
47d0cfd351854611999665f04a62bff5bebaaf70ccb7778a12e28834ed22be13Ubuntu Security Notice 3468-1 - It was discovered that the KVM subsystem in the Linux kernel did not properly bound guest IRQs. A local attacker in a guest VM could use this to cause a denial of service. It was discovered that the Flash-Friendly File System implementation in the Linux kernel did not properly validate superblock metadata. A local attacker could use this to cause a denial of service or possibly execute arbitrary code. Various other issues were also addressed.
4351d0ac9d461f5f4d4e71ae65bcadc5bdb1901c5bd483b113516c2bb33b787aUbuntu Security Notice 3470-1 - Qian Zhang discovered a heap-based buffer overflow in the tipc_msg_build function in the Linux kernel. A local attacker could use to cause a denial of service or possibly execute arbitrary code with administrative privileges. Dmitry Vyukov discovered that a race condition existed in the timerfd subsystem of the Linux kernel when handling might_cancel queuing. A local attacker could use this to cause a denial of service or possibly execute arbitrary code. Various other issues were also addressed.
79802aa159a36b07a77681f62d34e9d9160b1f7e1046cae1a8af43715e35697bUbuntu Security Notice 3468-3 - It was discovered that the KVM subsystem in the Linux kernel did not properly bound guest IRQs. A local attacker in a guest VM could use this to cause a denial of service. It was discovered that the Flash-Friendly File System implementation in the Linux kernel did not properly validate superblock metadata. A local attacker could use this to cause a denial of service or possibly execute arbitrary code. Various other issues were also addressed.
b0c7e1f5657c8f1a680373d7595b40ecf55695e2aab91e40342187daa8027ff6The Linux Kernel running on AMD64 systems will sometimes map the contents of PIE executable, the heap or ld.so to where the stack is mapped allowing attackers to more easily manipulate the stack. It was discovered that a buffer overflow existed in the Bluetooth stack of the Linux kernel when handling L2CAP configuration responses. A physically proximate attacker could use this to cause a denial of service (system crash). It was discovered that the Flash-Friendly File System (f2fs) implementation in the Linux kernel did not properly validate superblock metadata. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code.
f03b9428d67dc46ff3b712d7c827a00f746ceef20553d5b7b9236072384bb73eUbuntu Security Notice 3420-1 - It was discovered that a buffer overflow existed in the Bluetooth stack of the Linux kernel when handling L2CAP configuration responses. A physically proximate attacker could use this to cause a denial of service. It was discovered that the Flash-Friendly File System implementation in the Linux kernel did not properly validate superblock metadata. A local attacker could use this to cause a denial of service or possibly execute arbitrary code. Various other issues were also addressed.
121d74ff01c97dc17adc587c56c8b84bf85cf03412480c1e717209d3c1561270Ubuntu Security Notice 3420-2 - USN-3420-1 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 buffer overflow existed in the Bluetooth stack of the Linux kernel when handling L2CAP configuration responses. A physically proximate attacker could use this to cause a denial of service. Various other issues were also addressed.
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