USN-4041-2: Linux kernel (HWE) update<\/p>\n
A security issue affects these releases of Ubuntu and its derivatives:<\/p>\n
Several security issues were fixed in the Linux kernel.<\/p>\n
USN-4041-1 provided updates for the Linux kernel in Ubuntu.
\nThis update provides the corresponding updates for the Linux kernel
\nfor Ubuntu 16.04 ESM.<\/p>\n
USN-4017-2 fixed vulnerabilities in the Linux kernel. Unfortunately,
\nthe update introduced a regression that interfered with networking
\napplications that setup very low SO_SNDBUF values. This update fixes
\nthe problem.<\/p>\n
We apologize for the inconvenience.<\/p>\n
Jonathan Looney discovered that the Linux kernel could be coerced into
\nsegmenting responses into multiple TCP segments. A remote attacker could
\nconstruct an ongoing sequence of requests to cause a denial of service.
\n(CVE-2019-11479)<\/p>\n
The problem can be corrected by updating your system to the following package versions:<\/p>\n
To update your system, please follow these instructions: https:\/\/wiki.ubuntu.com\/Security\/Upgrades<\/a>.<\/p>\n After a standard system update you need to reboot your computer to make ATTENTION: Due to an unavoidable ABI change the kernel updates have Source: USN-4041-2: Linux kernel (HWE) update<\/a><\/p>\n","protected":false},"excerpt":{"rendered":" USN-4041-2: Linux kernel (HWE) update linux-lts-xenial, linux-aws, linux-azure update A security issue affects these releases of Ubuntu and its derivatives: Ubuntu 14.04 ESM Summary Several security issues were fixed in the Linux kernel. Software Description linux-aws – Linux kernel for Amazon Web Services (AWS) systems linux-azure – Linux kernel for Microsoft Azure Cloud systems linux-lts-xenial – Linux hardware enablement kernel from Xenial for Trusty Details USN-4041-1 provided updates for the Linux kernel in Ubuntu. This update provides the corresponding updates for the Linux kernel for Ubuntu 16.04 ESM. USN-4017-2 fixed vulnerabilities in the Linux kernel. Unfortunately, the update introduced a regression that interfered with networking applications that setup very low SO_SNDBUF values. This update fixes the problem. We apologize for the inconvenience. Jonathan Looney discovered that the Linux kernel could be coerced into segmenting responses into multiple TCP segments. A [ more… ]<\/a><\/p>\n<\/div>","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[586],"tags":[587],"class_list":["post-31756","post","type-post","status-publish","format-standard","hentry","category-ubuntu-usn","tag-ubuntu-usn"],"amp_enabled":true,"_links":{"self":[{"href":"https:\/\/jirak.net\/wp\/wp-json\/wp\/v2\/posts\/31756","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/jirak.net\/wp\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/jirak.net\/wp\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/jirak.net\/wp\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/jirak.net\/wp\/wp-json\/wp\/v2\/comments?post=31756"}],"version-history":[{"count":1,"href":"https:\/\/jirak.net\/wp\/wp-json\/wp\/v2\/posts\/31756\/revisions"}],"predecessor-version":[{"id":31757,"href":"https:\/\/jirak.net\/wp\/wp-json\/wp\/v2\/posts\/31756\/revisions\/31757"}],"wp:attachment":[{"href":"https:\/\/jirak.net\/wp\/wp-json\/wp\/v2\/media?parent=31756"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/jirak.net\/wp\/wp-json\/wp\/v2\/categories?post=31756"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/jirak.net\/wp\/wp-json\/wp\/v2\/tags?post=31756"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}
\nall the necessary changes.<\/p>\n
\nbeen given a new version number, which requires you to recompile and
\nreinstall all third party kernel modules you might have installed.
\nUnless you manually uninstalled the standard kernel metapackages
\n(e.g. linux-generic, linux-generic-lts-RELEASE, linux-virtual,
\nlinux-powerpc), a standard system upgrade will automatically perform
\nthis as well.<\/p>\nReferences<\/h2>\n
\n