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CVE-2021-25214

MEDIUM
Published 2021-04-29T00:55:16.042608Z
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Expert Analysis

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CVSS Score

V3.1
6.5
/10
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Base Score Metrics
Exploitability: N/A Impact: N/A

EPSS Score

v2025.03.14
0.006
probability
of exploitation in the wild

There is a 0.6% chance that this vulnerability will be exploited in the wild within the next 30 days.

Updated: 2025-06-25
Exploit Probability
Percentile: 0.694
Higher than 69.4% of all CVEs

Attack Vector Metrics

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED

Impact Metrics

Confidentiality
NONE
Integrity
NONE
Availability
HIGH

Description

In BIND 9.8.5 -> 9.8.8, 9.9.3 -> 9.11.29, 9.12.0 -> 9.16.13, and versions BIND 9.9.3-S1 -> 9.11.29-S1 and 9.16.8-S1 -> 9.16.13-S1 of BIND 9 Supported Preview Edition, as well as release versions 9.17.0 -> 9.17.11 of the BIND 9.17 development branch, when a vulnerable version of named receives a malformed IXFR triggering the flaw described above, the named process will terminate due to a failed assertion the next time the transferred secondary zone is refreshed.

Available Exploits

No exploits available for this CVE.

Related News

No news articles found for this CVE.

Affected Products

ISC

BIND9

Affected Versions:

Open Source Branch 9.8 9.8.5 through 9.8.8 Open Source Branches 9.9 through 9.11 9.9.3 through versions before 9.11.30 Open Source Branches 9.12 through 9.16 9.12.0 through versions before 9.16.14 Supported Preview Branches 9.9-S through 9.11-S 9.9.3-S1 through versions before 9.11.30-S1 Supported Preview Branch 9.16-S 9.16.8-S1 through versions before 9.16.14-S1 Development Branch 9.17 9.17.0 through versiosn before 9.17.12

GitHub Security Advisories

Community-driven vulnerability intelligence from GitHub

⚠ Unreviewed MODERATE

GHSA-pqmv-mqwc-wmr3

Advisory Details

In BIND 9.8.5 -> 9.8.8, 9.9.3 -> 9.11.29, 9.12.0 -> 9.16.13, and versions BIND 9.9.3-S1 -> 9.11.29-S1 and 9.16.8-S1 -> 9.16.13-S1 of BIND 9 Supported Preview Edition, as well as release versions 9.17.0 -> 9.17.11 of the BIND 9.17 development branch, when a vulnerable version of named receives a malformed IXFR triggering the flaw described above, the named process will terminate due to a failed assertion the next time the transferred secondary zone is refreshed.

CVSS Scoring

CVSS Score

5.0

CVSS Vector

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

References

ADVISORY https://nvd.nist.gov/vuln/detail/CVE-2021-25214
WEB https://cert-portal.siemens.com/productcert/pdf/ssa-389290.pdf
WEB https://kb.isc.org/v1/docs/cve-2021-25214
WEB https://lists.debian.org/debian-lts-announce/2021/05/msg00001.html
WEB https://lists.fedoraproject.org/archives/list/[email protected]/message/VEC2XG4Q2ODTN2C4CGXEIXU3EUTBMK7L
WEB https://lists.fedoraproject.org/archives/list/[email protected]/message/ZDSRPCJQ7MZC6CENH5PO3VQOFI7VSWBE
WEB https://security.netapp.com/advisory/ntap-20210521-0006
WEB https://www.debian.org/security/2021/dsa-4909
WEB http://www.openwall.com/lists/oss-security/2021/04/29/1
WEB http://www.openwall.com/lists/oss-security/2021/04/29/2
WEB http://www.openwall.com/lists/oss-security/2021/04/29/3
WEB http://www.openwall.com/lists/oss-security/2021/04/29/4

Advisory provided by GitHub Security Advisory Database. Published: May 24, 2022, Modified: May 24, 2022

References

https://kb.isc.org/v1/docs/cve-2021-25214
http://www.openwall.com/lists/oss-security/2021/04/29/1
http://www.openwall.com/lists/oss-security/2021/04/29/2
http://www.openwall.com/lists/oss-security/2021/04/29/3
http://www.openwall.com/lists/oss-security/2021/04/29/4
https://www.debian.org/security/2021/dsa-4909
https://lists.debian.org/debian-lts-announce/2021/05/msg00001.html
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/VEC2XG4Q2ODTN2C4CGXEIXU3EUTBMK7L/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ZDSRPCJQ7MZC6CENH5PO3VQOFI7VSWBE/
https://security.netapp.com/advisory/ntap-20210521-0006/
https://cert-portal.siemens.com/productcert/pdf/ssa-389290.pdf
Published: 2021-04-29T00:55:16.042608Z
Last Modified: 2024-09-17T00:37:21.136Z
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