{"id":15847,"date":"2017-04-28T14:34:21","date_gmt":"2017-04-28T05:34:21","guid":{"rendered":"https:\/\/jirak.net\/wp\/usn-3271-1-libxslt-vulnerabilities\/"},"modified":"2017-04-28T14:34:21","modified_gmt":"2017-04-28T05:34:21","slug":"usn-3271-1-libxslt-vulnerabilities","status":"publish","type":"post","link":"https:\/\/jirak.net\/wp\/usn-3271-1-libxslt-vulnerabilities\/","title":{"rendered":"USN-3271-1: Libxslt vulnerabilities"},"content":{"rendered":"<p>USN-3271-1: Libxslt vulnerabilities<\/p>\n<h2>Ubuntu Security Notice USN-3271-1<\/h2>\n<p><em>27th April, 2017<\/em><\/p>\n<h3>libxslt vulnerabilities<\/h3>\n<p>A security issue affects these releases of Ubuntu and its<br \/>\n    derivatives:<\/p>\n<ul>\n<li>Ubuntu 17.04<\/li>\n<li>Ubuntu 16.10<\/li>\n<li>Ubuntu 16.04 LTS<\/li>\n<li>Ubuntu 14.04 LTS<\/li>\n<li>Ubuntu 12.04 LTS<\/li>\n<\/ul>\n<h3>Summary<\/h3>\n<p>Several security issues were fixed in Libxslt.\n<\/p>\n<h3>Software description<\/h3>\n<ul>\n<li>libxslt<br \/>\n    &#8211; XSLT processing library<\/p>\n<\/li>\n<\/ul>\n<h3>Details<\/h3>\n<p>Holger Fuhrmannek discovered an integer overflow in the<br \/>xsltAddTextString() function in Libxslt. An attacker could use<br \/>this to craft a malicious document that, when opened, could cause a<br \/>denial of service (application crash) or possible execute arbitrary<br \/>code. (<a href=\"http:\/\/people.ubuntu.com\/~ubuntu-security\/cve\/CVE-2017-5029\">CVE-2017-5029<\/a>)<\/p>\n<p>Nicolas Gregoire discovered that Libxslt mishandled namespace<br \/>nodes. An attacker could use this to craft a malicious document that,<br \/>when opened, could cause a denial of service (application crash)<br \/>or possibly execute arbtrary code. This issue only affected Ubuntu<br \/>16.04 LTS, Ubuntu 14.04 LTS, and Ubuntu 12.04 LTS. (<a href=\"http:\/\/people.ubuntu.com\/~ubuntu-security\/cve\/CVE-2016-1683\">CVE-2016-1683<\/a>)<\/p>\n<p>Sebastian Apelt discovered that a use-after-error existed in the<br \/>xsltDocumentFunctionLoadDocument() function in Libxslt. An attacker<br \/>could use this to craft a malicious document that, when opened,<br \/>could cause a denial of service (application crash) or possibly<br \/>execute arbitrary code. This issue only affected Ubuntu 16.04 LTS,<br \/>Ubuntu 14.04 LTS, and Ubuntu 12.04 LTS. (<a href=\"http:\/\/people.ubuntu.com\/~ubuntu-security\/cve\/CVE-2016-1841\">CVE-2016-1841<\/a>)<\/p>\n<p>It was discovered that a type confusion error existed in the<br \/>xsltStylePreCompute() function in Libxslt. An attacker could use this<br \/>to craft a malicious XML file that, when opened, caused a denial of<br \/>service (application crash). This issue only affected Ubuntu 14.04<br \/>LTS and Ubuntu 12.04 LTS. (<a href=\"http:\/\/people.ubuntu.com\/~ubuntu-security\/cve\/CVE-2015-7995\">CVE-2015-7995<\/a>)<\/p>\n<p>Nicolas Gregoire discovered the Libxslt mishandled the &#039;i&#039; and &#039;a&#039;<br \/>format tokens for xsl:number data. An attacker could use this to<br \/>craft a malicious document that, when opened, could cause a denial of<br \/>service (application crash). This issue only affected Ubuntu 16.04 LTS,<br \/>Ubuntu 14.04 LTS, and Ubuntu 12.04 LTS. (<a href=\"http:\/\/people.ubuntu.com\/~ubuntu-security\/cve\/CVE-2016-1684\">CVE-2016-1684<\/a>)<\/p>\n<p>It was discovered that the xsltFormatNumberConversion() function<br \/>in Libxslt did not properly handle empty decimal separators. An<br \/>attacker could use this to craft a malicious document that, when<br \/>opened, could cause a denial of service (application crash). This<br \/>issue only affected Ubuntu 16.10, Ubuntu 16.04 LTS, Ubuntu 14.04 LTS,<br \/>and Ubuntu 12.04 LTS. (<a href=\"http:\/\/people.ubuntu.com\/~ubuntu-security\/cve\/CVE-2016-4738\">CVE-2016-4738<\/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 17.04:<\/dt>\n<dd>\n    <a href=\"https:\/\/launchpad.net\/ubuntu\/+source\/libxslt\">libxslt1.1<\/a><br \/>\n    <span><br \/>\n        <a href=\"https:\/\/launchpad.net\/ubuntu\/+source\/libxslt\/1.1.29-2ubuntu0.1\">1.1.29-2ubuntu0.1<\/a><br \/>\n    <\/span>\n  <\/dd>\n<dt>Ubuntu 16.10:<\/dt>\n<dd>\n    <a href=\"https:\/\/launchpad.net\/ubuntu\/+source\/libxslt\">libxslt1.1<\/a><br \/>\n    <span><br \/>\n        <a href=\"https:\/\/launchpad.net\/ubuntu\/+source\/libxslt\/1.1.29-1ubuntu0.1\">1.1.29-1ubuntu0.1<\/a><br \/>\n    <\/span>\n  <\/dd>\n<dt>Ubuntu 16.04 LTS:<\/dt>\n<dd>\n    <a href=\"https:\/\/launchpad.net\/ubuntu\/+source\/libxslt\">libxslt1.1<\/a><br \/>\n    <span><br \/>\n        <a href=\"https:\/\/launchpad.net\/ubuntu\/+source\/libxslt\/1.1.28-2.1ubuntu0.1\">1.1.28-2.1ubuntu0.1<\/a><br \/>\n    <\/span>\n  <\/dd>\n<dt>Ubuntu 14.04 LTS:<\/dt>\n<dd>\n    <a href=\"https:\/\/launchpad.net\/ubuntu\/+source\/libxslt\">libxslt1.1<\/a><br \/>\n    <span><br \/>\n        <a href=\"https:\/\/launchpad.net\/ubuntu\/+source\/libxslt\/1.1.28-2ubuntu0.1\">1.1.28-2ubuntu0.1<\/a><br \/>\n    <\/span>\n  <\/dd>\n<dt>Ubuntu 12.04 LTS:<\/dt>\n<dd>\n    <a href=\"https:\/\/launchpad.net\/ubuntu\/+source\/libxslt\">libxslt1.1<\/a><br \/>\n    <span><br \/>\n        <a href=\"https:\/\/launchpad.net\/ubuntu\/+source\/libxslt\/1.1.26-8ubuntu1.4\">1.1.26-8ubuntu1.4<\/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-2015-7995\">CVE-2015-7995<\/a>, <\/p>\n<p>        <a href=\"http:\/\/people.ubuntu.com\/~ubuntu-security\/cve\/CVE-2016-1683\">CVE-2016-1683<\/a>, <\/p>\n<p>        <a href=\"http:\/\/people.ubuntu.com\/~ubuntu-security\/cve\/CVE-2016-1684\">CVE-2016-1684<\/a>, <\/p>\n<p>        <a href=\"http:\/\/people.ubuntu.com\/~ubuntu-security\/cve\/CVE-2016-1841\">CVE-2016-1841<\/a>, <\/p>\n<p>        <a href=\"http:\/\/people.ubuntu.com\/~ubuntu-security\/cve\/CVE-2016-4738\">CVE-2016-4738<\/a>, <\/p>\n<p>        <a href=\"http:\/\/people.ubuntu.com\/~ubuntu-security\/cve\/CVE-2017-5029\">CVE-2017-5029<\/a><\/p>\n<p>Source: <a href=\"http:\/\/www.ubuntu.com\/usn\/usn-3271-1\/\" target=\"_blank\">USN-3271-1: Libxslt vulnerabilities<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<div class=\"mh-excerpt\"><p>USN-3271-1: Libxslt vulnerabilities Ubuntu Security Notice USN-3271-1 27th April, 2017 libxslt vulnerabilities A security issue affects these releases of Ubuntu and its derivatives: Ubuntu 17.04 Ubuntu 16.10 Ubuntu 16.04 LTS Ubuntu 14.04 LTS Ubuntu 12.04 LTS Summary Several security issues were fixed in Libxslt. Software description libxslt &#8211; XSLT processing library Details Holger Fuhrmannek discovered an integer overflow in thexsltAddTextString() function in Libxslt. An attacker could usethis to craft a malicious document that, when opened, could cause adenial of service (application crash) or possible execute arbitrarycode. (CVE-2017-5029) Nicolas Gregoire discovered that Libxslt mishandled namespacenodes. An attacker could use this to craft a malicious document that,when opened, could cause a denial of service (application crash)or possibly execute arbtrary code. This issue only affected Ubuntu16.04 LTS, Ubuntu 14.04 LTS, and Ubuntu 12.04 LTS. (CVE-2016-1683) Sebastian Apelt discovered that a use-after-error existed in <a class=\"mh-excerpt-more\" href=\"https:\/\/jirak.net\/wp\/usn-3271-1-libxslt-vulnerabilities\/\" title=\"USN-3271-1: Libxslt 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-15847","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\/15847","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=15847"}],"version-history":[{"count":1,"href":"https:\/\/jirak.net\/wp\/wp-json\/wp\/v2\/posts\/15847\/revisions"}],"predecessor-version":[{"id":15848,"href":"https:\/\/jirak.net\/wp\/wp-json\/wp\/v2\/posts\/15847\/revisions\/15848"}],"wp:attachment":[{"href":"https:\/\/jirak.net\/wp\/wp-json\/wp\/v2\/media?parent=15847"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/jirak.net\/wp\/wp-json\/wp\/v2\/categories?post=15847"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/jirak.net\/wp\/wp-json\/wp\/v2\/tags?post=15847"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}