CVE-2021-25219

Common vulnerabilities & exposures (CVE)

CVE database CVE database blogpost Release & EoL database

Published at: - 27-10-2021 11:15

Last modified: - 25-04-2022 09:54

Total changes: - 5

Description

In BIND 9.3.0 -> 9.11.35, 9.12.0 -> 9.16.21, and versions 9.9.3-S1 -> 9.11.35-S1 and 9.16.8-S1 -> 9.16.21-S1 of BIND Supported Preview Edition, as well as release versions 9.17.0 -> 9.17.18 of the BIND 9.17 development branch, exploitation of broken authoritative servers using a flaw in response processing can cause degradation in BIND resolver performance. The way the lame cache is currently designed makes it possible for its internal data structures to grow almost infinitely, which may cause significant delays in client query processing.

Common Vulnerability Scoring System (CVSS)

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

Low

Attack complexity

Network

Attack vector

Low

Availability

None

Confidentiality

None

Integrity

None

Privileges required

Unchanged

Scope

None

User interaction

5.3

Base score

3.9

1.4

Exploitability score

Impact score

Verification logic

vendor=isc AND product=bind AND software_edition=- AND versionStartIncluding=9.3.0 AND versionEndExcluding=9.11.36

vendor=isc AND product=bind AND version=9.9.3 AND update=s1 AND software_edition=supported_preview

vendor=isc AND product=bind AND version=9.9.12 AND update=s1 AND software_edition=supported_preview

vendor=isc AND product=bind AND version=9.9.13 AND update=s1 AND software_edition=supported_preview

vendor=isc AND product=bind AND version=9.10.5 AND update=s1 AND software_edition=supported_preview

vendor=isc AND product=bind AND version=9.10.7 AND update=s1 AND software_edition=supported_preview

vendor=isc AND product=bind AND version=9.11.3 AND update=s1 AND software_edition=supported_preview

vendor=isc AND product=bind AND version=9.11.5 AND update=s3 AND software_edition=supported_preview

vendor=isc AND product=bind AND version=9.11.5 AND update=s5 AND software_edition=supported_preview

vendor=isc AND product=bind AND version=9.11.5 AND update=s6 AND software_edition=supported_preview

vendor=isc AND product=bind AND version=9.11.6 AND update=s1 AND software_edition=supported_preview

vendor=isc AND product=bind AND version=9.11.7 AND update=s1 AND software_edition=supported_preview

vendor=isc AND product=bind AND version=9.11.8 AND update=s1 AND software_edition=supported_preview

vendor=isc AND product=bind AND version=9.11.12 AND update=s1 AND software_edition=supported_preview

vendor=isc AND product=bind AND version=9.11.21 AND update=s1 AND software_edition=supported_preview

vendor=isc AND product=bind AND version=9.11.27 AND update=s1 AND software_edition=supported_preview

vendor=isc AND product=bind AND version=9.11.29 AND update=s1 AND software_edition=supported_preview

vendor=isc AND product=bind AND version=9.11.35 AND update=s1 AND software_edition=supported_preview

vendor=isc AND product=bind AND software_edition=- AND versionStartIncluding=9.12.0 AND versionEndExcluding=9.16.22

vendor=isc AND product=bind AND version=9.16.8 AND update=s1 AND software_edition=supported_preview

vendor=isc AND product=bind AND version=9.16.11 AND update=s1 AND software_edition=supported_preview

vendor=isc AND product=bind AND version=9.16.13 AND update=s1 AND software_edition=supported_preview

vendor=isc AND product=bind AND version=9.16.21 AND update=s1 AND software_edition=supported_preview

vendor=isc AND product=bind AND software_edition=- AND versionStartIncluding=9.17.0 AND versionEndExcluding=9.17.19

vendor=Debian AND product=debian_linux AND version=9.0

vendor=Debian AND product=debian_linux AND version=10.0

vendor=Debian AND product=debian_linux AND version=11.0

vendor=fedoraproject AND product=fedora AND version=33

vendor=fedoraproject AND product=fedora AND version=34

vendor=fedoraproject AND product=fedora AND version=35

AND

vendor=netapp AND product=h300s_firmware AND version=-

vendor=netapp AND product=h300s AND version=-

AND

vendor=netapp AND product=h500s_firmware AND version=-

vendor=netapp AND product=h500s AND version=-

AND

vendor=netapp AND product=h700s_firmware AND version=-

vendor=netapp AND product=h700s AND version=-

AND

vendor=netapp AND product=h300e_firmware AND version=-

vendor=netapp AND product=h300e AND version=-

AND

vendor=netapp AND product=h500e_firmware AND version=-

vendor=netapp AND product=h500e AND version=-

AND

vendor=netapp AND product=h700e_firmware AND version=-

vendor=netapp AND product=h700e AND version=-

AND

vendor=netapp AND product=h410s_firmware AND version=-

vendor=netapp AND product=h410s AND version=-

AND

vendor=netapp AND product=h410c_firmware AND version=-

vendor=netapp AND product=h410c AND version=-

vendor=netapp AND product=cloud_backup AND version=-

vendor=siemens AND product=sinec_infrastructure_network_services AND versionEndExcluding=1.0.1.1

vendor=oracle AND product=http_server AND version=12.2.1.3.0

vendor=oracle AND product=http_server AND version=12.2.1.4.0

vendor=oracle AND product=zfs_storage_appliance_kit AND version=8.8

Reference

https://kb.isc.org/v1/docs/cve-2021-25219
DSA-4994-Third Party Advisory
FEDORA-2021-39b33260b8-Mailing List, Third Party Advisory
FEDORA-2021-58e7b873b7-Mailing List, Third Party Advisory
[debian-lts-announce] 20211102 [SECURITY] [DLA 2807-1] bind9 security update-Mailing List, Third Party Advisory
FEDORA-2021-eb8dab50ba-Mailing List, Third Party Advisory
https://security.netapp.com/advisory/ntap-20211118-0002/
https://cert-portal.siemens.com/productcert/pdf/ssa-389290.pdf
https://www.oracle.com/security-alerts/cpuapr2022.html

Keywords

CVE-2021-25219

Common vulnerabilities & exposures (CVE)

Description

Common Vulnerability Scoring System (CVSS)

Verification logic

Reference

NVD

CVE-2021-25219

CVE

Common vulnerabilities & exposures

CVSS

Common vulnerability scoring system

Security

Vulnerabilities

Exposures