==========================================================================
\nUbuntu Security Notice USN-5477-1
\nJune 14, 2022<\/p>\n
ncurses vulnerabilities
\n==========================================================================<\/p>\n
A security issue affects these releases of Ubuntu and its derivatives:<\/p>\n
– Ubuntu 16.04 ESM
\n– Ubuntu 14.04 ESM<\/p>\n
Summary:<\/p>\n
Several security issues were fixed in ncurses.<\/p>\n
Software Description:
\n– ncurses: shared libraries for terminal handling (32-bit)<\/p>\n
Details:<\/p>\n
Hosein Askari discovered that ncurses was incorrectly performing
\nmemory management operations when dealing with long filenames while
\nwriting structures into the file system. An attacker could possibly
\nuse this issue to cause a denial of service or execute arbitrary
\ncode. (CVE-2017-16879)<\/p>\n
Chung-Yi Lin discovered that ncurses was incorrectly handling access
\nto invalid memory areas when parsing terminfo or termcap entries where
\nthe use-name had invalid syntax. An attacker could possibly use this
\nissue to cause a denial of service. (CVE-2018-19211)<\/p>\n
It was discovered that ncurses was incorrectly performing bounds
\nchecks when processing invalid hashcodes. An attacker could possibly
\nuse this issue to cause a denial of service or to expose sensitive
\ninformation. (CVE-2019-17594)<\/p>\n
It was discovered that ncurses was incorrectly handling
\nend-of-string characters when processing terminfo and termcap files.
\nAn attacker could possibly use this issue to cause a denial of
\nservice or to expose sensitive information. (CVE-2019-17595)<\/p>\n
It was discovered that ncurses was incorrectly handling
\nend-of-string characters when converting between termcap and
\nterminfo formats. An attacker could possibly use this issue to cause
\na denial of service or execute arbitrary code. (CVE-2021-39537)<\/p>\n
It was discovered that ncurses was incorrectly performing bounds
\nchecks when dealing with corrupt terminfo data while reading a
\nterminfo file. An attacker could possibly use this issue to cause a
\ndenial of service or to expose sensitive information.
\n(CVE-2022-29458)<\/p>\n
Update instructions:<\/p>\n
The problem can be corrected by updating your system to the following
\npackage versions:<\/p>\n
Ubuntu 16.04 ESM:
\nlibncurses5 6.0+20160213-1ubuntu1+esm2
\nlibtinfo5 6.0+20160213-1ubuntu1+esm2
\nncurses-bin 6.0+20160213-1ubuntu1+esm2<\/p>\n
Ubuntu 14.04 ESM:
\nlibncurses5 5.9+20140118-1ubuntu1+esm2
\nlibtinfo5 5.9+20140118-1ubuntu1+esm2
\nncurses-bin 5.9+20140118-1ubuntu1+esm2<\/p>\n
In general, a standard system update will make all the necessary changes.<\/p>\n
References:
\nhttps:\/\/ubuntu.com\/security\/notices\/USN-5477-1
\nCVE-2017-16879, CVE-2018-19211, CVE-2019-17594, CVE-2019-17595,
\nCVE-2021-39537, CVE-2022-29458<\/p>\n","protected":false},"excerpt":{"rendered":"
========================================================================== Ubuntu Security Notice USN-5477-1 June 14, 2022 ncurses vulnerabilities ========================================================================== A security issue affects these releases of Ubuntu and its derivatives: – Ubuntu 16.04 ESM – Ubuntu 14.04 ESM Summary: Several security issues were fixed in ncurses. Software Description: – ncurses: shared libraries for terminal handling (32-bit) Details: Hosein Askari discovered that ncurses was …<\/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-25903","post","type-post","status-publish","format-standard","hentry","category-vulnerability"],"_links":{"self":[{"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/posts\/25903","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=25903"}],"version-history":[{"count":0,"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/posts\/25903\/revisions"}],"wp:attachment":[{"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/media?parent=25903"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/categories?post=25903"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/tags?post=25903"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}