USN-3508-1: Linux kernel vulnerabilities<\/p>\n
7th December, 2017<\/em><\/p>\n A security issue affects these releases of Ubuntu and its Several security issues were fixed in the Linux kernel.\n<\/p>\n Mohamed Ghannam discovered that a use-after-free vulnerability existed in It was discovered that the Linux kernel did not properly handle copy-on- Yonggang Guo discovered that a race condition existed in the driver The problem can be corrected by updating your system to the following To update your system, please follow these instructions: After a standard system update you need to reboot your computer to make ATTENTION: Due to an unavoidable ABI change the kernel updates have CVE-2017-1000405<\/a>, <\/p>\n CVE-2017-12146<\/a>, <\/p>\n CVE-2017-16939<\/a><\/p>\n Source: USN-3508-1: Linux kernel vulnerabilities<\/a><\/p>\n","protected":false},"excerpt":{"rendered":" USN-3508-1: Linux kernel vulnerabilities Ubuntu Security Notice USN-3508-1 7th December, 2017 linux, linux-raspi2 vulnerabilities A security issue affects these releases of Ubuntu and its derivatives: Ubuntu 17.04 Summary Several security issues were fixed in the Linux kernel. Software description linux – Linux kernel linux-raspi2 – Linux kernel for Raspberry Pi 2 Details Mohamed Ghannam discovered that a use-after-free vulnerability existed inthe Netlink subsystem (XFRM) in the Linux kernel. A local attacker coulduse this to cause a denial of service (system crash) or possibly executearbitrary code. (CVE-2017-16939) It was discovered that the Linux kernel did not properly handle copy-on-write of transparent huge pages. A local attacker could use this to cause adenial of service (application crashes) or possibly gain administrativeprivileges. (CVE-2017-1000405) Yonggang Guo discovered that a race condition existed in the driversubsystem in the Linux kernel. A local attacker could use [ 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-21034","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\/21034","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=21034"}],"version-history":[{"count":1,"href":"https:\/\/jirak.net\/wp\/wp-json\/wp\/v2\/posts\/21034\/revisions"}],"predecessor-version":[{"id":21035,"href":"https:\/\/jirak.net\/wp\/wp-json\/wp\/v2\/posts\/21034\/revisions\/21035"}],"wp:attachment":[{"href":"https:\/\/jirak.net\/wp\/wp-json\/wp\/v2\/media?parent=21034"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/jirak.net\/wp\/wp-json\/wp\/v2\/categories?post=21034"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/jirak.net\/wp\/wp-json\/wp\/v2\/tags?post=21034"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}linux, linux-raspi2 vulnerabilities<\/h3>\n
\n derivatives:<\/p>\n\n
Summary<\/h3>\n
Software description<\/h3>\n
\n
\n – Linux kernel<\/p>\n<\/li>\n
\n – Linux kernel for Raspberry Pi 2<\/p>\n<\/li>\n<\/ul>\nDetails<\/h3>\n
the Netlink subsystem (XFRM) in the Linux kernel. A local attacker could
use this to cause a denial of service (system crash) or possibly execute
arbitrary code. (CVE-2017-16939<\/a>)<\/p>\n
write of transparent huge pages. A local attacker could use this to cause a
denial of service (application crashes) or possibly gain administrative
privileges. (CVE-2017-1000405<\/a>)<\/p>\n
subsystem in the Linux kernel. A local attacker could use this to possibly
gain administrative privileges. (CVE-2017-12146<\/a>)<\/p>\nUpdate instructions<\/h3>\n
\npackage version:<\/p>\n\n
\n
\n 4.10.0-42.46<\/a>
\n <\/span>\n <\/dd>\n
\n
\n 4.10.0-42.46<\/a>
\n <\/span>\n <\/dd>\n
\n
\n 4.10.0-1023.26<\/a>
\n <\/span>\n <\/dd>\n
\n
\n 4.10.0-42.46<\/a>
\n <\/span>\n <\/dd>\n
\nhttps:\/\/wiki.ubuntu.com\/Security\/Upgrades<\/a>.\n<\/p>\n
all the necessary changes.<\/p>\n
been given a new version number, which requires you to recompile and
reinstall all third party kernel modules you might have installed.
Unless you manually uninstalled the standard kernel metapackages
(e.g. linux-generic, linux-generic-lts-RELEASE, linux-virtual,
linux-powerpc), a standard system upgrade will automatically perform
this as well.<\/p>\nReferences<\/h3>\n