Ubuntu Security Notice 3162-2 - 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. Andreas Gruenbacher and Jan Kara discovered that the filesystem implementation in the Linux kernel did not clear the setgid bit during a setxattr call. A local attacker could use this to possibly elevate group privileges. Various other issues were also addressed.
1a152ec0d19bda232ea06ae996e6b93187b6b85c72aaa3e85cc3d929ae530758Ubuntu Security Notice 3161-4 - Tilman Schmidt and Sasha Levin discovered a use-after-free condition in the TTY implementation in the Linux kernel. A local attacker could use this to expose sensitive information. It was discovered that the Video For Linux Two implementation in the Linux kernel did not properly handle multiple planes when processing a VIDIOC_DQBUF ioctl. A local attacker could use this to cause a denial of service or possibly execute arbitrary code. Various other issues were also addressed.
09cffad9b41759532941fa035fb7aeb597e6fa782bb0de514b160c4fbc83e328Ubuntu Security Notice 3161-3 - Tilman Schmidt and Sasha Levin discovered a use-after-free condition in the TTY implementation in the Linux kernel. A local attacker could use this to expose sensitive information. It was discovered that the Video For Linux Two implementation in the Linux kernel did not properly handle multiple planes when processing a VIDIOC_DQBUF ioctl. A local attacker could use this to cause a denial of service or possibly execute arbitrary code. Various other issues were also addressed.
3b72c509222788127c3449442ce79d5f2bb6a03e63fee7e3522725b77a66b344Ondrej Kozina discovered that the keyring interface in the Linux kernel contained a buffer overflow when displaying timeout events via the /proc/keys interface. A local attacker could use this to cause a denial of service (system crash). Dmitry Vyukov discovered a use-after-free vulnerability during error processing in the recvmmsg(2) implementation in the Linux kernel. A remote attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. Various other kernel vulnerabilities were also discovered and addressed.
5eae3cc7ae9949b636e16234a44d66f6ecfbbb7d410b77b7636cc74cb28cfc31Ubuntu Security Notice 3147-1 - Andreas Gruenbacher and Jan Kara discovered that the filesystem implementation in the Linux kernel did not clear the setgid bit during a setxattr call. A local attacker could use this to possibly elevate group privileges. Marco Grassi discovered that the driver for Areca RAID Controllers in the Linux kernel did not properly validate control messages. A local attacker could use this to cause a denial of service or possibly gain privileges. Various other issues were also addressed.
24c2633893f05bc0f748cbbe00340693c9d2ef8d8ccaae283c9f5eb4d49199e9Ubuntu Security Notice 3146-2 - USN-3146-1 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 the __get_user_asm_ex implementation in the Linux kernel for x86/x86_64 contained extended asm statements that were incompatible with the exception table. A local attacker could use this to gain administrative privileges. Various other issues were also addressed.
f19373773609e5f45ffaa3056bccfff36fc9074e721afb3c23140514cba33613Ubuntu Security Notice 3146-1 - It was discovered that the __get_user_asm_ex implementation in the Linux kernel for x86/x86_64 contained extended asm statements that were incompatible with the exception table. A local attacker could use this to gain administrative privileges. Andreas Gruenbacher and Jan Kara discovered that the filesystem implementation in the Linux kernel did not clear the setgid bit during a setxattr call. A local attacker could use this to possibly elevate group privileges. Various other issues were also addressed.
866d7bda3219cca441808b8427f774eec5e84f72709d3a29611f6b9bc47b4ee1Ubuntu Security Notice 3145-2 - USN-3145-1 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 LTS. Marco Grassi discovered that the driver for Areca RAID Controllers in the Linux kernel did not properly validate control messages. A local attacker could use this to cause a denial of service or possibly gain privileges. Various other issues were also addressed.
2d4e1867096ccba98da932b775e03c4b91aee4f7258ab10f399832c6c0bcc5e2Ubuntu Security Notice 3145-1 - Marco Grassi discovered that the driver for Areca RAID Controllers in the Linux kernel did not properly validate control messages. A local attacker could use this to cause a denial of service or possibly gain privileges. Daxing Guo discovered a stack-based buffer overflow in the Broadcom IEEE802.11n FullMAC driver in the Linux kernel. A local attacker could use this to cause a denial of service or possibly gain privileges. Various other issues were also addressed.
e9d32953ccbbf124bab9efb2bc7409afdac81d72acd4c30be579d590fcba2667Ubuntu Security Notice 3144-1 - Marco Grassi discovered that the driver for Areca RAID Controllers in the Linux kernel did not properly validate control messages. A local attacker could use this to cause a denial of service or possibly gain privileges.
476ef8a28c6c02f72f961436a2b3a5da7959fc2c2ee0e02adb1a04c3acaa5438Ubuntu Security Notice 3144-2 - Marco Grassi discovered that the driver for Areca RAID Controllers in the Linux kernel did not properly validate control messages. A local attacker could use this to cause a denial of service or possibly gain privileges.
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