CVE-2022-48256 — HIGH (7.5)

Q: What is CVE-2022-48256?

CVE-2022-48256 is a vulnerability with a CVSS score of 7.5 (HIGH). Technitium DNS Server before 10.0 allows a self-CNAME denial-of-service attack in which a CNAME loop causes an answer to contain hundreds of records.

Q: How severe is CVE-2022-48256?

CVE-2022-48256 has been rated HIGH with a CVSS base score of 7.5/10. Review the CVSS metrics above for detailed severity breakdown.

Q: Is there a patch for CVE-2022-48256?

Check the references section above for vendor advisories and patch information. Affected products include: Technitium Dns Server.

Vulnerability Description

Technitium DNS Server before 10.0 allows a self-CNAME denial-of-service attack in which a CNAME loop causes an answer to contain hundreds of records.

CVSS Score

7.5

HIGH

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

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality

NONE

Integrity

NONE

Availability

HIGH

Affected Products

Vendor	Product	Versions
Technitium	Dns Server	< 10.0

Related Weaknesses (CWE)

CWE-835

References

https://github.com/TechnitiumSoftware/DnsServer/blob/master/CHANGELOG.md#versionRelease NotesThird Party Advisory
https://github.com/TechnitiumSoftware/DnsServer/blob/master/CHANGELOG.md#versionRelease NotesThird Party Advisory

FAQ

What is CVE-2022-48256?

CVE-2022-48256 is a vulnerability with a CVSS score of 7.5 (HIGH). Technitium DNS Server before 10.0 allows a self-CNAME denial-of-service attack in which a CNAME loop causes an answer to contain hundreds of records.

How severe is CVE-2022-48256?

CVE-2022-48256 has been rated HIGH with a CVSS base score of 7.5/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2022-48256?

Check the references section above for vendor advisories and patch information. Affected products include: Technitium Dns Server.