{"id":58299,"date":"2024-07-18T17:31:19","date_gmt":"2024-07-18T14:31:19","guid":{"rendered":"https:\/\/packetstormsecurity.com\/files\/179589\/USN-6901-1.txt"},"modified":"2024-07-18T17:31:19","modified_gmt":"2024-07-18T14:31:19","slug":"ubuntu-security-notice-usn-6901-1","status":"publish","type":"post","link":"https:\/\/afaghhosting.net\/blog\/ubuntu-security-notice-usn-6901-1\/","title":{"rendered":"Ubuntu Security Notice USN-6901-1"},"content":{"rendered":"<p>==========================================================================<br \/>Ubuntu Security Notice USN-6901-1<br \/>July 18, 2024<\/p>\n<p>stunnel vulnerability<br \/>==========================================================================<\/p>\n<p>A security issue affects these releases of Ubuntu and its derivatives:<\/p>\n<p>&#8211; Ubuntu 20.04 LTS<br \/>&#8211; Ubuntu 18.04 LTS<\/p>\n<p>Summary:<\/p>\n<p>stunnel could allow unintended access to network services.<\/p>\n<p>Software Description:<br \/>&#8211; stunnel4: Universal SSL tunnel for network daemons<\/p>\n<p>Details:<\/p>\n<p>It was discovered that stunnel did not properly validate client<br \/>certificates when configured to use both the redirect and verifyChain<br \/>options. A remote attacker could potentially use this issue to obtain<br \/>sensitive information by accessing the tunneled service.<\/p>\n<p>Update instructions:<\/p>\n<p>The problem can be corrected by updating your system to the following<br \/>package versions:<\/p>\n<p>Ubuntu 20.04 LTS<br \/>stunnel4 3:5.56-1ubuntu0.2<\/p>\n<p>Ubuntu 18.04 LTS<br \/>stunnel4 3:5.44-1ubuntu3+esm1<br \/>Available with Ubuntu Pro<\/p>\n<p>In general, a standard system update will make all the necessary changes.<\/p>\n<p>References:<br \/>https:\/\/ubuntu.com\/security\/notices\/USN-6901-1<br \/>CVE-2021-20230<\/p>\n<p>Package Information:<br \/>https:\/\/launchpad.net\/ubuntu\/+source\/stunnel4\/3:5.56-1ubuntu0.2<\/p>\n","protected":false},"excerpt":{"rendered":"<p>==========================================================================Ubuntu Security Notice USN-6901-1July 18, 2024 stunnel vulnerability========================================================================== A security issue affects these releases of Ubuntu and its derivatives: &#8211; Ubuntu 20.04 LTS&#8211; Ubuntu 18.04 LTS Summary: stunnel could allow unintended access to network services. Software Description:&#8211; stunnel4: Universal SSL tunnel for network daemons Details: It was discovered that stunnel did not properly validate clientcertificates &hellip;<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[26],"tags":[],"class_list":["post-58299","post","type-post","status-publish","format-standard","hentry","category-vulnerability"],"_links":{"self":[{"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/posts\/58299","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/comments?post=58299"}],"version-history":[{"count":0,"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/posts\/58299\/revisions"}],"wp:attachment":[{"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/media?parent=58299"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/categories?post=58299"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/tags?post=58299"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}