==========================================================================
Ubuntu Security Notice USN-6723-1
April 09, 2024<\/p>\n
bind9 vulnerabilities
==========================================================================<\/p>\n
A security issue affects these releases of Ubuntu and its derivatives:<\/p>\n
– Ubuntu 18.04 LTS (Available with Ubuntu Pro)
– Ubuntu 16.04 LTS (Available with Ubuntu Pro)
– Ubuntu 14.04 LTS (Available with Ubuntu Pro)<\/p>\n
Summary:<\/p>\n
Bind could be made to crash if it received specially crafted
input.<\/p>\n
Software Description:
– bind9: Internet Domain Name Server<\/p>\n
Details:<\/p>\n
Elias Heftrig, Haya Schulmann, Niklas Vogel, and Michael Waidner discovered
that Bind icorrectly handled validating DNSSEC messages. A remote attacker
could possibly use this issue to cause Bind to consume resources, leading
to a denial of service. (CVE-2023-50387)<\/p>\n
It was discovered that Bind incorrectly handled preparing an NSEC3 closest
encloser proof. A remote attacker could possibly use this issue to cause
Bind to consume resources, leading to a denial of service. (CVE-2023-50868)<\/p>\n
Update instructions:<\/p>\n
The problem can be corrected by updating your system to the following
package versions:<\/p>\n
Ubuntu 18.04 LTS (Available with Ubuntu Pro):
bind9 1:9.11.3+dfsg-1ubuntu1.19+esm3<\/p>\n
Ubuntu 16.04 LTS (Available with Ubuntu Pro):
bind9 1:9.10.3.dfsg.P4-8ubuntu1.19+esm8<\/p>\n
Ubuntu 14.04 LTS (Available with Ubuntu Pro):
bind9 1:9.9.5.dfsg-3ubuntu0.19+esm12<\/p>\n
In general, a standard system update will make all the necessary changes.<\/p>\n
References:
https:\/\/ubuntu.com\/security\/notices\/USN-6723-1
CVE-2023-50387, CVE-2023-50868<\/p>\n","protected":false},"excerpt":{"rendered":"
==========================================================================Ubuntu Security Notice USN-6723-1April 09, 2024 bind9 vulnerabilities========================================================================== A security issue affects these releases of Ubuntu and its derivatives: – Ubuntu 18.04 LTS (Available with Ubuntu Pro)– Ubuntu 16.04 LTS (Available with Ubuntu Pro)– Ubuntu 14.04 LTS (Available with Ubuntu Pro) Summary: Bind could be made to crash if it received specially craftedinput. Software Description:– …<\/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-56169","post","type-post","status-publish","format-standard","hentry","category-vulnerability"],"_links":{"self":[{"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/posts\/56169","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=56169"}],"version-history":[{"count":0,"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/posts\/56169\/revisions"}],"wp:attachment":[{"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/media?parent=56169"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/categories?post=56169"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/tags?post=56169"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}