Update your Ubuntu kernel, in Focal Fossa also waiting for your security report

Ubuntu kernel updated for security

This month, Canonical had only updated the Ubuntu kernel one time, April 7. This may have been the case for one of two reasons: they have not found major security flaws to correct during all this time or they were waiting for the launch of Focal Fossa on April 23, which has already occurred and they can return to normal. . In any case, there are already new versions of the Ubuntu kernel for all supported systems.

At present, those supported systems They are Ubuntu 19.10, Ubuntu 18.04 LTS, Ubuntu 16.04 LTS, and Ubuntu 14.04 ESM. Logically, Ubuntu 20.04 also enjoys support, the new version of Canonical's operating system that hasn't been around for a week yet, but the company that runs Mark Shuttleworth has forgotten to share the corresponding security report that is on its website. official.

This kernel update fixes a high priority bug

The safety reports they have published are the USN-4342-1, what speaks to us 7 bugs affecting Ubuntu 19.10 and Ubuntu 18.04 LTS, and USN-4346-1, which mentions 5 bugs that affect Ubuntu 16.04 LTS and Ubuntu 14.04 ESM. Some bugs are present in all versions of Ubuntu. What we do not have any information about is what they have fixed in the Ubuntu 20.04 kernel The report on Focal Fossa has also been published already. Its about USN-4343-1 and details a bug fixed in Ubuntu 20.04, the only one labeled as high priority, a CVE-2020-11884 with the following description:

Al Viro found that the Linux kernel for s390x systems was not working properly al perform page table updates for kernel sections that use a secondary address mode. A local attacker could use this to cause a denial of service (system hang) or execute arbitrary code.

To install these patches and protect ourselves from all these failures, just open the software center of our official flavor (or Software Update app) and install the new packages that will already be waiting for us. For the changes to take effect, it will be necessary to restart the operating system, unless we have activated the LivePatch which is available in Ubuntu 20.04.


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