{"id":32640,"date":"2019-08-28T21:30:03","date_gmt":"2019-08-28T12:30:03","guid":{"rendered":"https:\/\/jirak.net\/wp\/usn-4110-1-dovecot-vulnerability\/"},"modified":"2019-08-28T23:34:27","modified_gmt":"2019-08-28T14:34:27","slug":"usn-4110-1-dovecot-vulnerability","status":"publish","type":"post","link":"https:\/\/jirak.net\/wp\/usn-4110-1-dovecot-vulnerability\/","title":{"rendered":"USN-4110-1: Dovecot vulnerability"},"content":{"rendered":"<p>USN-4110-1: Dovecot vulnerability<\/p>\n<h2 id=\"dovecot-vulnerability\">dovecot vulnerability<\/h2>\n<p>A security issue affects these releases of Ubuntu and its derivatives:<\/p>\n<ul>\n<li>Ubuntu 19.04<\/li>\n<li>Ubuntu 18.04 LTS<\/li>\n<li>Ubuntu 16.04 LTS<\/li>\n<\/ul>\n<h3 id=\"summary\">Summary<\/h3>\n<p>Dovecot could be made to crash or execute arbitrary code if it<br \/>\nreceived a specially crafted data.<\/p>\n<h3 id=\"software-description\">Software Description<\/h3>\n<ul>\n<li>dovecot &#8211; IMAP and POP3 email server<\/li>\n<\/ul>\n<h3 id=\"details\">Details<\/h3>\n<p>Nick Roessler and Rafi Rubin discovered that Dovecot incorrectly<br \/>\nhandled certain data. An attacker could possibly use this issue<br \/>\nto cause a denial of service or execute arbitrary code.<\/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 19.04<\/dt>\n<dd><a href=\"https:\/\/launchpad.net\/ubuntu\/+source\/dovecot\">dovecot-core<\/a> &#8211; <a href=\"https:\/\/launchpad.net\/ubuntu\/+source\/dovecot\/1:2.3.4.1-1ubuntu2.3\">1:2.3.4.1-1ubuntu2.3<\/a><\/dd>\n<dt>Ubuntu 18.04 LTS<\/dt>\n<dd><a href=\"https:\/\/launchpad.net\/ubuntu\/+source\/dovecot\">dovecot-core<\/a> &#8211; <a href=\"https:\/\/launchpad.net\/ubuntu\/+source\/dovecot\/1:2.2.33.2-1ubuntu4.4\">1:2.2.33.2-1ubuntu4.4<\/a><\/dd>\n<dt>Ubuntu 16.04 LTS<\/dt>\n<dd><a href=\"https:\/\/launchpad.net\/ubuntu\/+source\/dovecot\">dovecot-core<\/a> &#8211; <a href=\"https:\/\/launchpad.net\/ubuntu\/+source\/dovecot\/1:2.2.22-1ubuntu2.11\">1:2.2.22-1ubuntu2.11<\/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:\/\/people.canonical.com\/~ubuntu-security\/cve\/CVE-2019-11500\">CVE-2019-11500<\/a><\/li>\n<\/ul>\n<p>Source: <a href=\"https:\/\/usn.ubuntu.com\/4110-1\/\" target=\"_blank\" rel=\"noopener noreferrer\">USN-4110-1: Dovecot vulnerability<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<div class=\"mh-excerpt\"><p>USN-4110-1: Dovecot vulnerability dovecot vulnerability A security issue affects these releases of Ubuntu and its derivatives: Ubuntu 19.04 Ubuntu 18.04 LTS Ubuntu 16.04 LTS Summary Dovecot could be made to crash or execute arbitrary code if it received a specially crafted data. Software Description dovecot &#8211; IMAP and POP3 email server Details Nick Roessler and Rafi Rubin discovered that Dovecot incorrectly handled certain data. An attacker could possibly use this issue to cause a denial of service or execute arbitrary code. Update instructions The problem can be corrected by updating your system to the following package versions: Ubuntu 19.04 dovecot-core &#8211; 1:2.3.4.1-1ubuntu2.3 Ubuntu 18.04 LTS dovecot-core &#8211; 1:2.2.33.2-1ubuntu4.4 Ubuntu 16.04 LTS dovecot-core &#8211; 1:2.2.22-1ubuntu2.11 To update your system, please follow these instructions: https:\/\/wiki.ubuntu.com\/Security\/Upgrades. In general, a standard system update will make all the necessary changes. References CVE-2019-11500 Source: USN-4110-1: Dovecot <a class=\"mh-excerpt-more\" href=\"https:\/\/jirak.net\/wp\/usn-4110-1-dovecot-vulnerability\/\" title=\"USN-4110-1: Dovecot vulnerability\">[ 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-32640","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\/32640","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=32640"}],"version-history":[{"count":1,"href":"https:\/\/jirak.net\/wp\/wp-json\/wp\/v2\/posts\/32640\/revisions"}],"predecessor-version":[{"id":32641,"href":"https:\/\/jirak.net\/wp\/wp-json\/wp\/v2\/posts\/32640\/revisions\/32641"}],"wp:attachment":[{"href":"https:\/\/jirak.net\/wp\/wp-json\/wp\/v2\/media?parent=32640"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/jirak.net\/wp\/wp-json\/wp\/v2\/categories?post=32640"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/jirak.net\/wp\/wp-json\/wp\/v2\/tags?post=32640"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}