CVE-2021-25220

MEDIUMMonitor

Published:Mar 23, 2022(4 years ago)

Modified:Nov 21, 2024

Remote ExploitNo InteractionScope ChangesLow Complexity

Vulnerability Description

BIND 9.11.0 -> 9.11.36 9.12.0 -> 9.16.26 9.17.0 -> 9.18.0 BIND Supported Preview Editions: 9.11.4-S1 -> 9.11.36-S1 9.16.8-S1 -> 9.16.26-S1 Versions of BIND 9 earlier than those shown - back to 9.1.0, including Supported Preview Editions - are also believed to be affected but have not been tested as they are EOL. The cache could become poisoned with incorrect records leading to queries being made to the wrong servers, which might also result in false information being returned to clients.

Attack Characteristics

Network AccessLow ComplexityHigh PrivilegesNo User Interaction

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AI analysis not yet available

Plain-English explanation, risk summary, and remediation steps will appear here once AI analysis is complete.

No Fix Known

No patch has been released yet. Apply workarounds or mitigations where available.

Affected Software

130

Vendor	Product	Versions	Fixed In
isc	bind	9.11.0 - 9.11.37	-
isc	bind	9.11.4 - 9.11.37	-
isc	bind	9.12.0 - 9.16.27

Timeline

Published
CVE disclosed publicly
Mar 23, 20224 years ago
Last Modified
Most recent update
Nov 21, 20241 year ago
Indexed to CVEInsight
Added to this platform
Mar 29, 20261 month ago

References

https://cert-portal.siemens.com/productcert/pdf/ssa-637483.pdfPatch
https://kb.isc.org/v1/docs/cve-2021-25220Mitigation
https://lists.fedoraproject.org/archives/list/package-announce%40lists...

CVSS Score

v3.1

6.8/ 10.0

MEDIUM

AV:N/AC:L/PR:H/UI:N/S:C/C:N/I:H/A:N

At a Glance

130

Affected Products

References

isc / bind

https://lists.fedoraproject.org/archives/list/package-announce%40lists...

https://security.gentoo.org/glsa/202210-25Third Party Advisory

https://security.netapp.com/advisory/ntap-20220408-0001/Third Party Advisory

https://supportportal.juniper.net/s/article/2022-10-Security-Bulletin-...

https://cert-portal.siemens.com/productcert/pdf/ssa-637483.pdfPatch

https://kb.isc.org/v1/docs/cve-2021-25220Mitigation

https://lists.fedoraproject.org/archives/list/package-announce%40lists...

https://security.gentoo.org/glsa/202210-25Third Party Advisory

https://security.netapp.com/advisory/ntap-20220408-0001/Third Party Advisory

https://supportportal.juniper.net/s/article/2022-10-Security-Bulletin-...

CVSS v3 Vector

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

Exploitability

Attack VectorNetwork

Attack ComplexityLow

Privileges RequiredHigh

User InteractionNone

Impact

ScopeChanged

ConfidentialityNone

IntegrityHigh

AvailabilityNone

Impact Analysis

ConfidentialityNone

NoneLowHigh

IntegrityHigh

NoneLowHigh

AvailabilityNone

NoneLowHigh

CVE-2021-25220

✦ Vulnerability Description

Attack Characteristics

Affected Software

Timeline

References

CVSS Score

At a Glance

Official Sources

CVSS v3 Vector

Impact Analysis

Vulnerability Description