{"id":31287,"date":"2019-05-27T20:39:45","date_gmt":"2019-05-27T11:39:45","guid":{"rendered":"https:\/\/jirak.net\/wp\/usn-3976-3-samba-regression\/"},"modified":"2019-05-28T00:34:16","modified_gmt":"2019-05-27T15:34:16","slug":"usn-3976-3-samba-regression","status":"publish","type":"post","link":"https:\/\/jirak.net\/wp\/usn-3976-3-samba-regression\/","title":{"rendered":"USN-3976-3: Samba regression"},"content":{"rendered":"<p>USN-3976-3: Samba regression<\/p>\n<h2 id=\"samba-regression\">samba regression<\/h2>\n<p>A security issue affects these releases of Ubuntu and its derivatives:<\/p>\n<ul>\n<li>Ubuntu 18.04 LTS<\/li>\n<li>Ubuntu 16.04 LTS<\/li>\n<\/ul>\n<h3 id=\"summary\">Summary<\/h3>\n<p>USN-3976-1 introduced a regression in Samba.<\/p>\n<h3 id=\"software-description\">Software Description<\/h3>\n<ul>\n<li>samba &#8211; SMB\/CIFS file, print, and login server for Unix<\/li>\n<\/ul>\n<h3 id=\"details\">Details<\/h3>\n<p>USN-3976-1 fixed a vulnerability in Samba. The update introduced a<br \/>\nregression causing Samba to occasionally crash. This update fixes the<br \/>\nproblem.<\/p>\n<p>We apologize for the inconvenience.<\/p>\n<p>Original advisory details:<\/p>\n<p>Isaac Boukris and Andrew Bartlett discovered that Samba incorrectly checked<br \/>\n S4U2Self packets. In certain environments, a remote attacker could possibly<br \/>\n use this issue to escalate privileges.<\/p>\n<h2 id=\"update-instructions\">Update instructions<\/h2>\n<p>The problem can be corrected by updating your system to the following package versions:<\/p>\n<dl>\n<dt>Ubuntu 18.04 LTS<\/dt>\n<dd><a href=\"https:\/\/launchpad.net\/ubuntu\/+source\/samba\">samba<\/a> &#8211; <a href=\"https:\/\/launchpad.net\/ubuntu\/+source\/samba\/2:4.7.6+dfsg~ubuntu-0ubuntu2.11\">2:4.7.6+dfsg~ubuntu-0ubuntu2.11<\/a><\/dd>\n<dt>Ubuntu 16.04 LTS<\/dt>\n<dd><a href=\"https:\/\/launchpad.net\/ubuntu\/+source\/samba\">samba<\/a> &#8211; <a href=\"https:\/\/launchpad.net\/ubuntu\/+source\/samba\/2:4.3.11+dfsg-0ubuntu0.16.04.21\">2:4.3.11+dfsg-0ubuntu0.16.04.21<\/a><\/dd>\n<\/dl>\n<p>To update your system, please follow these instructions: <a href=\"https:\/\/wiki.ubuntu.com\/Security\/Upgrades\">https:\/\/wiki.ubuntu.com\/Security\/Upgrades<\/a>.<\/p>\n<p>In general, a standard system update will make all the necessary changes.<\/p>\n<h2 id=\"references\">References<\/h2>\n<ul>\n<li><a href=\"https:\/\/usn.ubuntu.com\/usn\/usn-3976-1\">USN-3976-1<\/a><\/li>\n<li><a href=\"https:\/\/launchpad.net\/bugs\/1827924\">LP: 1827924<\/a><\/li>\n<\/ul>\n<p>Source: <a href=\"https:\/\/usn.ubuntu.com\/3976-3\/\" target=\"_blank\" rel=\"noopener noreferrer\">USN-3976-3: Samba regression<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<div class=\"mh-excerpt\"><p>USN-3976-3: Samba regression samba regression A security issue affects these releases of Ubuntu and its derivatives: Ubuntu 18.04 LTS Ubuntu 16.04 LTS Summary USN-3976-1 introduced a regression in Samba. Software Description samba &#8211; SMB\/CIFS file, print, and login server for Unix Details USN-3976-1 fixed a vulnerability in Samba. The update introduced a regression causing Samba to occasionally crash. This update fixes the problem. We apologize for the inconvenience. Original advisory details: Isaac Boukris and Andrew Bartlett discovered that Samba incorrectly checked S4U2Self packets. In certain environments, a remote attacker could possibly use this issue to escalate privileges. Update instructions The problem can be corrected by updating your system to the following package versions: Ubuntu 18.04 LTS samba &#8211; 2:4.7.6+dfsg~ubuntu-0ubuntu2.11 Ubuntu 16.04 LTS samba &#8211; 2:4.3.11+dfsg-0ubuntu0.16.04.21 To update your system, please follow these instructions: https:\/\/wiki.ubuntu.com\/Security\/Upgrades. In general, a standard system update <a class=\"mh-excerpt-more\" href=\"https:\/\/jirak.net\/wp\/usn-3976-3-samba-regression\/\" title=\"USN-3976-3: Samba regression\">[ more&#8230; ]<\/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-31287","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\/31287","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=31287"}],"version-history":[{"count":1,"href":"https:\/\/jirak.net\/wp\/wp-json\/wp\/v2\/posts\/31287\/revisions"}],"predecessor-version":[{"id":31288,"href":"https:\/\/jirak.net\/wp\/wp-json\/wp\/v2\/posts\/31287\/revisions\/31288"}],"wp:attachment":[{"href":"https:\/\/jirak.net\/wp\/wp-json\/wp\/v2\/media?parent=31287"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/jirak.net\/wp\/wp-json\/wp\/v2\/categories?post=31287"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/jirak.net\/wp\/wp-json\/wp\/v2\/tags?post=31287"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}