Canonical launched main kernel safety updates for all of its supported Ubuntu Linux working system sequence to deal with as much as 15 safety vulnerabilities.

The largest kernel safety patch launched in December 2019 is for Ubuntu 19.10 (Eoan Ermine) and Ubuntu 18.04 LTS (Bionic Beaver) and fixes 12 vulnerabilities affecting Linux 5.3's OverlayFS and ShiftFS drivers, the Wi-Fi driver stack, ARM Komeda show driver, VirtualBox visitor driver implementation, ADIS16400 IIO IMU driver, and Intel OPA Gen1 Infiniband driver.

Issues found within the AMD Audio CoProcessor driver, Qualcomm FastRPC driver, Cascoda CA8210 SPI 802.15.Four wi-fi controller driver, AMD Display Engine driver, and Chelsio T4/T5 RDMA driver have been additionally addressed on this new kernel safety replace. The majority of those flaws may permit an area attacker to trigger a denial of service (reminiscence exhaustion or system crash).

Affecting the Linux 5.Zero kernel of Ubuntu 19.04 (Disco Dingo) and Ubuntu 18.04.3 LTS (Bionic Beaver) releases, the brand new kernel safety patch fixes a buffer overflow found within the 802.11 Wi-Fi configuration interface, which may permit an area attacker to trigger a denial of service (system crash) or presumably execute arbitrary code, and a reminiscence leak found within the Advanced Buffer Management performance of the Netronome NFP4000/NFP6000 NIC driver.

Users are urged to replace their methods instantly

For the Linux 4.Four kernel within the Ubuntu 16.04 LTS (Xenial Xerus) working system sequence, there's additionally a repair for an infinite loop found within the CFS Linux kernel course of scheduler, which may permit an area attacker to trigger a denial of service. Users are urged to replace their installations to the brand new kernel variations obtainable in the primary archives as quickly as doable.

The new Linux kernel variations are linux-image 5.3.0-24.26 for Ubuntu 19.10, linux-image 5.0.0-37.40 for Ubuntu 19.04, linux-image 5.0.0-37.40~18.04.1 for Ubuntu 18.04.3 LTS, linux-image 4.15.0-72.81 for Ubuntu 18.04 LTS, linux-image 4.15.0-72.81~16.04.1 for Ubuntu 16.04.6 LTS, and linux-image 4.4.0-170.199 for Ubuntu 16.04 LTS. To replace, observe the directions supplied by Canonical at https://wiki.ubuntu.com/Security/Upgrades.