{"id":20607,"date":"2017-11-23T06:34:18","date_gmt":"2017-11-22T21:34:18","guid":{"rendered":"https:\/\/jirak.net\/wp\/usn-3491-1-ldns-vulnerabilities\/"},"modified":"2017-11-23T06:34:18","modified_gmt":"2017-11-22T21:34:18","slug":"usn-3491-1-ldns-vulnerabilities","status":"publish","type":"post","link":"https:\/\/jirak.net\/wp\/usn-3491-1-ldns-vulnerabilities\/","title":{"rendered":"USN-3491-1: ldns vulnerabilities"},"content":{"rendered":"<p>USN-3491-1: ldns vulnerabilities<\/p>\n<h2>Ubuntu Security Notice USN-3491-1<\/h2>\n<p><em>22nd November, 2017<\/em><\/p>\n<h3>ldns vulnerabilities<\/h3>\n<p>A security issue affects these releases of Ubuntu and its<br \/>\n    derivatives:<\/p>\n<ul>\n<li>Ubuntu 17.10<\/li>\n<li>Ubuntu 17.04<\/li>\n<li>Ubuntu 16.04 LTS<\/li>\n<li>Ubuntu 14.04 LTS<\/li>\n<\/ul>\n<h3>Summary<\/h3>\n<p>Several security issues were fixed in ldns.\n<\/p>\n<h3>Software description<\/h3>\n<ul>\n<li>ldns<br \/>\n    &#8211; ldns library for DNS programming<\/p>\n<\/li>\n<\/ul>\n<h3>Details<\/h3>\n<p>Leon Weber discovered that the ldns-keygen tool incorrectly set permissions<br \/>on private keys. A local attacker could possibly use this issue to obtain<br \/>generated private keys. This issue only applied to Ubuntu 14.04 LTS.<br \/>(<a href=\"http:\/\/people.ubuntu.com\/~ubuntu-security\/cve\/CVE-2014-3209\">CVE-2014-3209<\/a>)<\/p>\n<p>Stephan Zeisberg discovered that ldns incorrectly handled memory when<br \/>processing data. A remote attacker could use this issue to cause ldns to<br \/>crash, resulting in a denial of service, or possibly execute arbitrary<br \/>code. (<a href=\"http:\/\/people.ubuntu.com\/~ubuntu-security\/cve\/CVE-2017-1000231\">CVE-2017-1000231<\/a>, <a href=\"http:\/\/people.ubuntu.com\/~ubuntu-security\/cve\/CVE-2017-1000232\">CVE-2017-1000232<\/a>)<\/p>\n<h3>Update instructions<\/h3>\n<p> The problem can be corrected by updating your system to the following<br \/>\npackage version:<\/p>\n<dl>\n<dt>Ubuntu 17.10:<\/dt>\n<dd>\n    <a href=\"https:\/\/launchpad.net\/ubuntu\/+source\/ldns\">libldns2<\/a><br \/>\n    <span><br \/>\n        <a href=\"https:\/\/launchpad.net\/ubuntu\/+source\/ldns\/1.7.0-1ubuntu1.17.10.1\">1.7.0-1ubuntu1.17.10.1<\/a><br \/>\n    <\/span>\n  <\/dd>\n<dt>Ubuntu 17.04:<\/dt>\n<dd>\n    <a href=\"https:\/\/launchpad.net\/ubuntu\/+source\/ldns\">libldns2<\/a><br \/>\n    <span><br \/>\n        <a href=\"https:\/\/launchpad.net\/ubuntu\/+source\/ldns\/1.7.0-1ubuntu1.17.04.1\">1.7.0-1ubuntu1.17.04.1<\/a><br \/>\n    <\/span>\n  <\/dd>\n<dt>Ubuntu 16.04 LTS:<\/dt>\n<dd>\n    <a href=\"https:\/\/launchpad.net\/ubuntu\/+source\/ldns\">libldns1<\/a><br \/>\n    <span><br \/>\n        <a href=\"https:\/\/launchpad.net\/ubuntu\/+source\/ldns\/1.6.17-8ubuntu0.1\">1.6.17-8ubuntu0.1<\/a><br \/>\n    <\/span>\n  <\/dd>\n<dt>Ubuntu 14.04 LTS:<\/dt>\n<dd>\n    <a href=\"https:\/\/launchpad.net\/ubuntu\/+source\/ldns\">libldns1<\/a><br \/>\n    <span><br \/>\n        <a href=\"https:\/\/launchpad.net\/ubuntu\/+source\/ldns\/1.6.17-1ubuntu0.1\">1.6.17-1ubuntu0.1<\/a><br \/>\n    <\/span>\n  <\/dd>\n<\/dl>\n<p>To update your system, please follow these instructions:<br \/>\n<a href=\"https:\/\/wiki.ubuntu.com\/Security\/Upgrades\">https:\/\/wiki.ubuntu.com\/Security\/Upgrades<\/a>.\n<\/p>\n<p>In general, a standard system update will make all the necessary changes.<\/p>\n<h3>References<\/h3>\n<p>        <a href=\"http:\/\/people.ubuntu.com\/~ubuntu-security\/cve\/CVE-2014-3209\">CVE-2014-3209<\/a>, <\/p>\n<p>        <a href=\"http:\/\/people.ubuntu.com\/~ubuntu-security\/cve\/CVE-2017-1000231\">CVE-2017-1000231<\/a>, <\/p>\n<p>        <a href=\"http:\/\/people.ubuntu.com\/~ubuntu-security\/cve\/CVE-2017-1000232\">CVE-2017-1000232<\/a><\/p>\n<p>Source: <a href=\"http:\/\/www.ubuntu.com\/usn\/usn-3491-1\/\" target=\"_blank\">USN-3491-1: ldns vulnerabilities<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<div class=\"mh-excerpt\"><p>USN-3491-1: ldns vulnerabilities Ubuntu Security Notice USN-3491-1 22nd November, 2017 ldns vulnerabilities A security issue affects these releases of Ubuntu and its derivatives: Ubuntu 17.10 Ubuntu 17.04 Ubuntu 16.04 LTS Ubuntu 14.04 LTS Summary Several security issues were fixed in ldns. Software description ldns &#8211; ldns library for DNS programming Details Leon Weber discovered that the ldns-keygen tool incorrectly set permissionson private keys. A local attacker could possibly use this issue to obtaingenerated private keys. This issue only applied to Ubuntu 14.04 LTS.(CVE-2014-3209) Stephan Zeisberg discovered that ldns incorrectly handled memory whenprocessing data. A remote attacker could use this issue to cause ldns tocrash, resulting in a denial of service, or possibly execute arbitrarycode. (CVE-2017-1000231, CVE-2017-1000232) Update instructions The problem can be corrected by updating your system to the following package version: Ubuntu 17.10: libldns2 1.7.0-1ubuntu1.17.10.1 Ubuntu 17.04: libldns2 1.7.0-1ubuntu1.17.04.1 <a class=\"mh-excerpt-more\" href=\"https:\/\/jirak.net\/wp\/usn-3491-1-ldns-vulnerabilities\/\" title=\"USN-3491-1: ldns vulnerabilities\">[ 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-20607","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\/20607","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=20607"}],"version-history":[{"count":1,"href":"https:\/\/jirak.net\/wp\/wp-json\/wp\/v2\/posts\/20607\/revisions"}],"predecessor-version":[{"id":20608,"href":"https:\/\/jirak.net\/wp\/wp-json\/wp\/v2\/posts\/20607\/revisions\/20608"}],"wp:attachment":[{"href":"https:\/\/jirak.net\/wp\/wp-json\/wp\/v2\/media?parent=20607"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/jirak.net\/wp\/wp-json\/wp\/v2\/categories?post=20607"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/jirak.net\/wp\/wp-json\/wp\/v2\/tags?post=20607"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}