USN-3070-1: Linux kernel vulnerabilities<\/p>\n
29th August, 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 A missing permission check when settings ACLs was discovered in nfsd. A Kangjie Lu discovered an information leak in the Reliable Datagram Sockets James Patrick-Evans discovered that the airspy USB device driver in the Yue Cao et al discovered a flaw in the TCP implementation's handling of Pengfei Wang discovered a race condition in the MIC VOP driver in the Linux Cyril Bur discovered that on PowerPC platforms, the Linux kernel mishandled It was discovered that a heap based buffer overflow existed in the USB HID It was discovered that the OverlayFS implementation in the Linux kernel did 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-2016-1237<\/a>, <\/p>\n CVE-2016-5244<\/a>, <\/p>\n CVE-2016-5400<\/a>, <\/p>\n CVE-2016-5696<\/a>, <\/p>\n CVE-2016-5728<\/a>, <\/p>\n CVE-2016-5828<\/a>, <\/p>\n CVE-2016-5829<\/a>, <\/p>\n CVE-2016-6197<\/a><\/p>\n Source: USN-3070-1: Linux kernel vulnerabilities<\/a><\/p>\n","protected":false},"excerpt":{"rendered":" USN-3070-1: Linux kernel vulnerabilities Ubuntu Security Notice USN-3070-1 29th August, 2016 linux vulnerabilities A security issue affects these releases of Ubuntu and its derivatives: Ubuntu 16.04 LTS Summary Several security issues were fixed in the kernel. Software description linux – Linux kernel Details A missing permission check when settings ACLs was discovered in nfsd. Alocal user could exploit this flaw to gain access to any file by setting anACL. (CVE-2016-1237) Kangjie Lu discovered an information leak in the Reliable Datagram Sockets(RDS) implementation in the Linux kernel. A local attacker could use thisto obtain potentially sensitive information from kernel memory.(CVE-2016-5244) James Patrick-Evans discovered that the airspy USB device driver in theLinux kernel did not properly handle certain error conditions. An attackerwith physical access could use this to cause a denial of service (memoryconsumption). (CVE-2016-5400) Yue Cao et al discovered a flaw [ 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-9800","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\/9800","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=9800"}],"version-history":[{"count":1,"href":"https:\/\/jirak.net\/wp\/wp-json\/wp\/v2\/posts\/9800\/revisions"}],"predecessor-version":[{"id":9801,"href":"https:\/\/jirak.net\/wp\/wp-json\/wp\/v2\/posts\/9800\/revisions\/9801"}],"wp:attachment":[{"href":"https:\/\/jirak.net\/wp\/wp-json\/wp\/v2\/media?parent=9800"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/jirak.net\/wp\/wp-json\/wp\/v2\/categories?post=9800"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/jirak.net\/wp\/wp-json\/wp\/v2\/tags?post=9800"}],"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
local user could exploit this flaw to gain access to any file by setting an
ACL. (CVE-2016-1237<\/a>)<\/p>\n
(RDS) implementation in the Linux kernel. A local attacker could use this
to obtain potentially sensitive information from kernel memory.
(CVE-2016-5244<\/a>)<\/p>\n
Linux kernel did not properly handle certain error conditions. An attacker
with physical access could use this to cause a denial of service (memory
consumption). (CVE-2016-5400<\/a>)<\/p>\n
challenge acks in the Linux kernel. A remote attacker could use this to
cause a denial of service (reset connection) or inject content into an TCP
stream. (CVE-2016-5696<\/a>)<\/p>\n
kernel. A local attacker could use this to cause a denial of service
(system crash) or obtain potentially sensitive information from kernel
memory. (CVE-2016-5728<\/a>)<\/p>\n
transactional memory state on exec(). A local attacker could use this to
cause a denial of service (system crash) or possibly execute arbitrary
code. (CVE-2016-5828<\/a>)<\/p>\n
driver in the Linux kernel. A local attacker could use this cause a denial
of service (system crash) or possibly execute arbitrary code.
(CVE-2016-5829<\/a>)<\/p>\n
not properly verify dentry state before proceeding with unlink and rename
operations. A local attacker could use this to cause a denial of service
(system crash). (CVE-2016-6197<\/a>)<\/p>\nUpdate instructions<\/h3>\n
\npackage version:<\/p>\n\n
\n
\n 4.4.0-36.55<\/a>
\n <\/span>\n <\/dd>\n
\n
\n 4.4.0-36.55<\/a>
\n <\/span>\n <\/dd>\n
\n
\n 4.4.0-36.55<\/a>
\n <\/span>\n <\/dd>\n
\n
\n 4.4.0-36.55<\/a>
\n <\/span>\n <\/dd>\n
\n
\n 4.4.0-36.55<\/a>
\n <\/span>\n <\/dd>\n
\n
\n 4.4.0-36.55<\/a>
\n <\/span>\n <\/dd>\n
\n
\n 4.4.0-36.55<\/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