Apply to Ubuntu 19.04 (Disco Dingo), Ubuntu 18.04 LTS (Bionic Beaver), Ubuntu 16.04 LTS (Xenial Xerus) and Ubuntu 14.04 ESM (Trusty Tahr), a new Linux kernel security update can be used to repair more than 30 security vulnerabilities, including in Marvell wireless LAN device driver stack buffer overflow found and discovered in the near field communication (NFC) implementations NULL pointer dereferencing.
The security patch also addresses the free use of Google Project Zero's Jann Horn found in the Linux kernel when accessing the LDT entry vulnerability, as well as competitive conditions when executing a core dump. Andrei Vlad Lutas and a defect found in Dan Lutas x86 processors are also fixed, the defects generated during the speculative execution SWAPGS instruction error handling.
Effects achieved PowerPC dlpar Linux kernel, the ptrace implementation, Bluetooth implementation, to achieve the alarm, clean the cache, USB subsystem, and a block layer, the MDIO bus device subsystems, Empia EM28xx DVB USB device driver, USB video device class implementation, Appletalk IP encapsulation several other vulnerabilities patched drivers and XFS, Btrfs, f2FS and HFS + file systems in the new security update.
We recommend that users install the update immediately
If you are using Ubuntu Linux 4.15 kernel with 18.04 LTS (Bionic Beaver) or Ubuntu 16.04 LTS (Xenial Xerus), please install the update to the Linux -image 4.15.0-58.64 as soon as possible. On the other hand, using the Linux 5.0 kernel ubuntu19.04 (Disco Dingo) and ubuntu18.04.3 LTS (Bionic Beaver) The user is asked to update their systems to Linux -image 5.0.0-25.26.