USN-3160-1: Linux kernel vulnerabilities<\/p>\n
20th December, 2016<\/em><\/p>\n A security issue affects these releases of Ubuntu and its Several security issues were fixed in the kernel.\n<\/p>\n CAI Qian discovered that shared bind mounts in a mount namespace It was discovered that a race condition existed in the procfs 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-2016-6213<\/a>, <\/p>\n CVE-2016-7916<\/a><\/p>\n Source: USN-3160-1: Linux kernel vulnerabilities<\/a><\/p>\n","protected":false},"excerpt":{"rendered":" USN-3160-1: Linux kernel vulnerabilities Ubuntu Security Notice USN-3160-1 20th December, 2016 linux vulnerabilities A security issue affects these releases of Ubuntu and its derivatives: Ubuntu 14.04 LTS Summary Several security issues were fixed in the kernel. Software description linux – Linux kernel Details CAI Qian discovered that shared bind mounts in a mount namespaceexponentially added entries without restriction to the Linux kernel's mounttable. A local attacker could use this to cause a denial of service (systemcrash). (CVE-2016-6213) It was discovered that a race condition existed in the procfsenviron_read function in the Linux kernel, leading to an integerunderflow. A local attacker could use this to expose sensitiveinformation (kernel memory). (CVE-2016-7916) Update instructions The problem can be corrected by updating your system to the following package version: Ubuntu 14.04 LTS: linux-image-powerpc-smp 3.13.0.106.114 linux-image-powerpc-e500mc 3.13.0.106.114 linux-image-3.13.0-106-powerpc64-emb 3.13.0-106.153 linux-image-3.13.0-106-lowlatency 3.13.0-106.153 linux-image-3.13.0-106-generic 3.13.0-106.153 linux-image-generic 3.13.0.106.114 [ 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-12864","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\/12864","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=12864"}],"version-history":[{"count":1,"href":"https:\/\/jirak.net\/wp\/wp-json\/wp\/v2\/posts\/12864\/revisions"}],"predecessor-version":[{"id":12865,"href":"https:\/\/jirak.net\/wp\/wp-json\/wp\/v2\/posts\/12864\/revisions\/12865"}],"wp:attachment":[{"href":"https:\/\/jirak.net\/wp\/wp-json\/wp\/v2\/media?parent=12864"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/jirak.net\/wp\/wp-json\/wp\/v2\/categories?post=12864"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/jirak.net\/wp\/wp-json\/wp\/v2\/tags?post=12864"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}linux vulnerabilities<\/h3>\n
\n derivatives:<\/p>\n\n
Summary<\/h3>\n
Software description<\/h3>\n
\n
\n – Linux kernel<\/p>\n<\/li>\n<\/ul>\nDetails<\/h3>\n
exponentially added entries without restriction to the Linux kernel's mount
table. A local attacker could use this to cause a denial of service (system
crash). (CVE-2016-6213<\/a>)<\/p>\n
environ_read function in the Linux kernel, leading to an integer
underflow. A local attacker could use this to expose sensitive
information (kernel memory). (CVE-2016-7916<\/a>)<\/p>\nUpdate instructions<\/h3>\n
\npackage version:<\/p>\n\n
\n
\n 3.13.0.106.114<\/a>
\n <\/span>\n <\/dd>\n
\n
\n 3.13.0.106.114<\/a>
\n <\/span>\n <\/dd>\n
\n
\n 3.13.0-106.153<\/a>
\n <\/span>\n <\/dd>\n
\n
\n 3.13.0-106.153<\/a>
\n <\/span>\n <\/dd>\n
\n
\n 3.13.0-106.153<\/a>
\n <\/span>\n <\/dd>\n
\n
\n 3.13.0.106.114<\/a>
\n <\/span>\n <\/dd>\n
\n
\n 3.13.0-106.153<\/a>
\n <\/span>\n <\/dd>\n
\n
\n 3.13.0.106.114<\/a>
\n <\/span>\n <\/dd>\n
\n
\n 3.13.0-106.153<\/a>
\n <\/span>\n <\/dd>\n
\n
\n 3.13.0-106.153<\/a>
\n <\/span>\n <\/dd>\n
\n
\n 3.13.0.106.114<\/a>
\n <\/span>\n <\/dd>\n
\n
\n 3.13.0.106.114<\/a>
\n <\/span>\n <\/dd>\n
\n
\n 3.13.0.106.114<\/a>
\n <\/span>\n <\/dd>\n
\n
\n 3.13.0-106.153<\/a>
\n <\/span>\n <\/dd>\n
\n
\n 3.13.0-106.153<\/a>
\n <\/span>\n <\/dd>\n
\n
\n 3.13.0.106.114<\/a>
\n <\/span>\n <\/dd>\n<\/dl>\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