CLSA-2026-1780406874

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Import Source
https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/ubuntu20.04els/CLSA-2026-1780406874.json
JSON Data
https://api.osv.dev/v1/vulns/CLSA-2026-1780406874
Upstream
  • CVE-2026-3039
  • CVE-2026-5946
Published
2026-06-02T17:33:41Z
Modified
2026-06-04T09:47:09.512732979Z
Summary
Fix CVE(s): CVE-2026-3039, CVE-2026-5946
Details
  • SECURITY UPDATE: Multiple assertion failures in named when handling DNS messages with non-IN class (CHAOS, HESIOD) or meta-classes (ANY, NONE) in UPDATE, NOTIFY, and recursion paths
    • debian/patches/CVE-2026-5946.patch: disable recursion for non-IN views, reject UPDATE and NOTIFY for non-IN classes, validate DNS message CLASS early in request processing, reject NONE/ANY meta-classes in UPDATE and NOTIFY questions, and skip deny-answer-address for non-IN addresses in bin/named/server.c, lib/bind9/check.c, lib/dns/adb.c, lib/dns/message.c, lib/dns/resolver.c, lib/ns/client.c, lib/ns/update.c
    • CVE-2026-5946
References

Affected packages

TuxCare:Ubuntu:20.04
bind9

Package

Name
bind9
Purl
pkg:deb/tuxcare/bind9?distro=ubuntu-20.04

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
1:9.18.30-0ubuntu0.20.04.2+tuxcare.els2

Database specific

source
"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/ubuntu20.04els/CLSA-2026-1780406874.json"
bind9-dnsutils

Package

Name
bind9-dnsutils
Purl
pkg:deb/tuxcare/bind9-dnsutils?distro=ubuntu-20.04

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
1:9.18.30-0ubuntu0.20.04.2+tuxcare.els2

Database specific

source
"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/ubuntu20.04els/CLSA-2026-1780406874.json"
bind9-doc

Package

Name
bind9-doc
Purl
pkg:deb/tuxcare/bind9-doc?distro=ubuntu-20.04

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
1:9.18.30-0ubuntu0.20.04.2+tuxcare.els2

Database specific

source
"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/ubuntu20.04els/CLSA-2026-1780406874.json"
bind9-host

Package

Name
bind9-host
Purl
pkg:deb/tuxcare/bind9-host?distro=ubuntu-20.04

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
1:9.18.30-0ubuntu0.20.04.2+tuxcare.els2

Database specific

source
"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/ubuntu20.04els/CLSA-2026-1780406874.json"
bind9-libs

Package

Name
bind9-libs
Purl
pkg:deb/tuxcare/bind9-libs?distro=ubuntu-20.04

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
1:9.18.30-0ubuntu0.20.04.2+tuxcare.els2

Database specific

source
"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/ubuntu20.04els/CLSA-2026-1780406874.json"
bind9-utils

Package

Name
bind9-utils
Purl
pkg:deb/tuxcare/bind9-utils?distro=ubuntu-20.04

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
1:9.18.30-0ubuntu0.20.04.2+tuxcare.els2

Database specific

source
"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/ubuntu20.04els/CLSA-2026-1780406874.json"
bind9utils

Package

Name
bind9utils
Purl
pkg:deb/tuxcare/bind9utils?distro=ubuntu-20.04

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
1:9.18.30-0ubuntu0.20.04.2+tuxcare.els2

Database specific

source
"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/ubuntu20.04els/CLSA-2026-1780406874.json"
dnsutils

Package

Name
dnsutils
Purl
pkg:deb/tuxcare/dnsutils?distro=ubuntu-20.04

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
1:9.18.30-0ubuntu0.20.04.2+tuxcare.els2

Database specific

source
"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/ubuntu20.04els/CLSA-2026-1780406874.json"