==========================================================================
\nUbuntu Security Notice USN-5325-1
\nMarch 14, 2022<\/p>\n
zsh vulnerabilities
\n==========================================================================<\/p>\n
A security issue affects these releases of Ubuntu and its derivatives:<\/p>\n
– Ubuntu 21.10
\n– Ubuntu 20.04 LTS
\n– Ubuntu 18.04 LTS
\n– Ubuntu 16.04 ESM<\/p>\n
Summary:<\/p>\n
Several security issues were fixed in Zsh.<\/p>\n
Software Description:
\n– zsh: shell with lots of features<\/p>\n
Details:<\/p>\n
Sam Foxman discovered that Zsh incorrectly handled certain inputs.
\nAn attacker could possibly use this issue to regain dropped privileges.
\n(CVE-2019-20044)<\/p>\n
It was discovered that Zsh incorrectly handled certain inputs.
\nAn attacker could possibly use this issue to execute arbitrary code.
\n(CVE-2021-45444)<\/p>\n
Update instructions:<\/p>\n
The problem can be corrected by updating your system to the following
\npackage versions:<\/p>\n
Ubuntu 21.10:
\nzsh 5.8-6ubuntu0.1
\nzsh-static 5.8-6ubuntu0.1<\/p>\n
Ubuntu 20.04 LTS:
\nzsh 5.8-3ubuntu1.1
\nzsh-static 5.8-3ubuntu1.1<\/p>\n
Ubuntu 18.04 LTS:
\nzsh 5.4.2-3ubuntu3.2
\nzsh-static 5.4.2-3ubuntu3.2<\/p>\n
Ubuntu 16.04 ESM:
\nzsh 5.1.1-1ubuntu2.3+esm1
\nzsh-static 5.1.1-1ubuntu2.3+esm1<\/p>\n
In general, a standard system update will make all the necessary changes.<\/p>\n
References:
\nhttps:\/\/ubuntu.com\/security\/notices\/USN-5325-1
\nCVE-2019-20044, CVE-2021-45444<\/p>\n
Package Information:
\nhttps:\/\/launchpad.net\/ubuntu\/+source\/zsh\/5.8-6ubuntu0.1
\nhttps:\/\/launchpad.net\/ubuntu\/+source\/zsh\/5.8-3ubuntu1.1
\nhttps:\/\/launchpad.net\/ubuntu\/+source\/zsh\/5.4.2-3ubuntu3.2<\/p>\n","protected":false},"excerpt":{"rendered":"
========================================================================== Ubuntu Security Notice USN-5325-1 March 14, 2022 zsh vulnerabilities ========================================================================== A security issue affects these releases of Ubuntu and its derivatives: – Ubuntu 21.10 – Ubuntu 20.04 LTS – Ubuntu 18.04 LTS – Ubuntu 16.04 ESM Summary: Several security issues were fixed in Zsh. Software Description: – zsh: shell with lots of features Details: …<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[26],"tags":[],"class_list":["post-21711","post","type-post","status-publish","format-standard","hentry","category-vulnerability"],"_links":{"self":[{"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/posts\/21711","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=21711"}],"version-history":[{"count":0,"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/posts\/21711\/revisions"}],"wp:attachment":[{"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/media?parent=21711"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/categories?post=21711"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/tags?post=21711"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}