1. Home
  2. CVE Database
  3. CVE-2021-31702
HIGH · 7.5

CVE-2021-31702

Frontier ichris through 5.18 mishandles making a DNS request for the hostname in the HTTP Host header, as demonstrated by submitting 127.0.0.1 multiple times for DoS.

Vulnerability Description

Frontier ichris through 5.18 mishandles making a DNS request for the hostname in the HTTP Host header, as demonstrated by submitting 127.0.0.1 multiple times for DoS.

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

VendorProductVersions
FrontiersoftwareIchris<= 5.18

References

FAQ

What is CVE-2021-31702?

CVE-2021-31702 is a vulnerability with a CVSS score of 7.5 (HIGH). Frontier ichris through 5.18 mishandles making a DNS request for the hostname in the HTTP Host header, as demonstrated by submitting 127.0.0.1 multiple times for DoS.

How severe is CVE-2021-31702?

CVE-2021-31702 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-2021-31702?

Check the references section above for vendor advisories and patch information. Affected products include: Frontiersoftware Ichris.