CLSA-2026-1788000191

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Import Source
https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/ubuntu18.04els/CLSA-2026-1788000191.json
JSON Data
https://api.osv.dev/v1/vulns/CLSA-2026-1788000191
Upstream
Published
2026-08-29T10:48:19Z
Modified
2026-10-26T09:32:03Z
Summary
Fix CVE(s): CVE-2023-6516
Details
  • SECURITY UPDATE: unbounded growth of the asynchronous RBT cache-cleanup queue lets max-cache-size be exceeded
    • debian/patches/CVE-2023-6516.patch: limit isc_task_send() overhead for tree pruning (upstream c3377cbfaa).
    • debian/patches/CVE-2023-6516-lock-contention.patch: reduce lock contention during RBTDB tree pruning (upstream 801e888d03).
    • debian/patches/CVE-2023-6516-prune-guards.patch: guard re-queueing a node for pruning (upstream f6289ad931, 4b6fc97af6, 7d9be24bb1).
    • debian/patches/CVE-2023-6516-final-design.patch: the design upstream settled on in 9.16.49, GL #4621 (upstream a548312191, eba7fb5f9f, 5f98eba608). Drops the prunenodes lists, so dns_rbtnode is unchanged and MAPAPI stays at 1.0.
    • CVE-2023-6516
References

Affected packages

TuxCare:Ubuntu:18.04
bind9

Package

Name
bind9
Purl
pkg:deb/tuxcare/bind9?distro=ubuntu-18.04

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
1:9.11.3+dfsg-1ubuntu1.18+tuxcare.els11

Database specific

source 
"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/ubuntu18.04els/CLSA-2026-1788000191.json"
bind9-doc

Package

Name
bind9-doc
Purl
pkg:deb/tuxcare/bind9-doc?distro=ubuntu-18.04

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
1:9.11.3+dfsg-1ubuntu1.18+tuxcare.els11

Database specific

source 
"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/ubuntu18.04els/CLSA-2026-1788000191.json"
bind9-host

Package

Name
bind9-host
Purl
pkg:deb/tuxcare/bind9-host?distro=ubuntu-18.04

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
1:9.11.3+dfsg-1ubuntu1.18+tuxcare.els11

Database specific

source 
"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/ubuntu18.04els/CLSA-2026-1788000191.json"
bind9utils

Package

Name
bind9utils
Purl
pkg:deb/tuxcare/bind9utils?distro=ubuntu-18.04

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
1:9.11.3+dfsg-1ubuntu1.18+tuxcare.els11

Database specific

source 
"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/ubuntu18.04els/CLSA-2026-1788000191.json"
dnsutils

Package

Name
dnsutils
Purl
pkg:deb/tuxcare/dnsutils?distro=ubuntu-18.04

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
1:9.11.3+dfsg-1ubuntu1.18+tuxcare.els11

Database specific

source 
"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/ubuntu18.04els/CLSA-2026-1788000191.json"
libbind-dev

Package

Name
libbind-dev
Purl
pkg:deb/tuxcare/libbind-dev?distro=ubuntu-18.04

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
1:9.11.3+dfsg-1ubuntu1.18+tuxcare.els11

Database specific

source 
"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/ubuntu18.04els/CLSA-2026-1788000191.json"
libbind-export-dev

Package

Name
libbind-export-dev
Purl
pkg:deb/tuxcare/libbind-export-dev?distro=ubuntu-18.04

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
1:9.11.3+dfsg-1ubuntu1.18+tuxcare.els11

Database specific

source 
"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/ubuntu18.04els/CLSA-2026-1788000191.json"
libbind9-160

Package

Name
libbind9-160
Purl
pkg:deb/tuxcare/libbind9-160?distro=ubuntu-18.04

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
1:9.11.3+dfsg-1ubuntu1.18+tuxcare.els11

Database specific

source 
"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/ubuntu18.04els/CLSA-2026-1788000191.json"
libdns-export1100

Package

Name
libdns-export1100
Purl
pkg:deb/tuxcare/libdns-export1100?distro=ubuntu-18.04

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
1:9.11.3+dfsg-1ubuntu1.18+tuxcare.els11

Database specific

source 
"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/ubuntu18.04els/CLSA-2026-1788000191.json"
libdns1100

Package

Name
libdns1100
Purl
pkg:deb/tuxcare/libdns1100?distro=ubuntu-18.04

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
1:9.11.3+dfsg-1ubuntu1.18+tuxcare.els11

Database specific

source 
"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/ubuntu18.04els/CLSA-2026-1788000191.json"
libirs-export160

Package

Name
libirs-export160
Purl
pkg:deb/tuxcare/libirs-export160?distro=ubuntu-18.04

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
1:9.11.3+dfsg-1ubuntu1.18+tuxcare.els11

Database specific

source 
"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/ubuntu18.04els/CLSA-2026-1788000191.json"
libirs160

Package

Name
libirs160
Purl
pkg:deb/tuxcare/libirs160?distro=ubuntu-18.04

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
1:9.11.3+dfsg-1ubuntu1.18+tuxcare.els11

Database specific

source 
"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/ubuntu18.04els/CLSA-2026-1788000191.json"
libisc-export169

Package

Name
libisc-export169
Purl
pkg:deb/tuxcare/libisc-export169?distro=ubuntu-18.04

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
1:9.11.3+dfsg-1ubuntu1.18+tuxcare.els11

Database specific

source 
"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/ubuntu18.04els/CLSA-2026-1788000191.json"
libisc169

Package

Name
libisc169
Purl
pkg:deb/tuxcare/libisc169?distro=ubuntu-18.04

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
1:9.11.3+dfsg-1ubuntu1.18+tuxcare.els11

Database specific

source 
"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/ubuntu18.04els/CLSA-2026-1788000191.json"
libisccc-export160

Package

Name
libisccc-export160
Purl
pkg:deb/tuxcare/libisccc-export160?distro=ubuntu-18.04

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
1:9.11.3+dfsg-1ubuntu1.18+tuxcare.els11

Database specific

source 
"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/ubuntu18.04els/CLSA-2026-1788000191.json"
libisccc160

Package

Name
libisccc160
Purl
pkg:deb/tuxcare/libisccc160?distro=ubuntu-18.04

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
1:9.11.3+dfsg-1ubuntu1.18+tuxcare.els11

Database specific

source 
"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/ubuntu18.04els/CLSA-2026-1788000191.json"
libisccfg-export160

Package

Name
libisccfg-export160
Purl
pkg:deb/tuxcare/libisccfg-export160?distro=ubuntu-18.04

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
1:9.11.3+dfsg-1ubuntu1.18+tuxcare.els11

Database specific

source 
"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/ubuntu18.04els/CLSA-2026-1788000191.json"
libisccfg160

Package

Name
libisccfg160
Purl
pkg:deb/tuxcare/libisccfg160?distro=ubuntu-18.04

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
1:9.11.3+dfsg-1ubuntu1.18+tuxcare.els11

Database specific

source 
"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/ubuntu18.04els/CLSA-2026-1788000191.json"
liblwres160

Package

Name
liblwres160
Purl
pkg:deb/tuxcare/liblwres160?distro=ubuntu-18.04

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
1:9.11.3+dfsg-1ubuntu1.18+tuxcare.els11

Database specific

source 
"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/ubuntu18.04els/CLSA-2026-1788000191.json"