1. Home
  2. CVE Database
  3. CVE-2023-31470
CRITICAL · 9.8

CVE-2023-31470

SmartDNS through 41 before 56d0332 allows an out-of-bounds write because of a stack-based buffer overflow in the _dns_encode_domain function in the dns.c file, via a crafted DNS request.

Vulnerability Description

SmartDNS through 41 before 56d0332 allows an out-of-bounds write because of a stack-based buffer overflow in the _dns_encode_domain function in the dns.c file, via a crafted DNS request.

CVSS Score

9.8

CRITICAL

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH

Affected Products

VendorProductVersions
PymumuSmartdns<= 41

Related Weaknesses (CWE)

CWE-787

References

FAQ

What is CVE-2023-31470?

CVE-2023-31470 is a vulnerability with a CVSS score of 9.8 (CRITICAL). SmartDNS through 41 before 56d0332 allows an out-of-bounds write because of a stack-based buffer overflow in the _dns_encode_domain function in the dns.c file, via a crafted DNS request.

How severe is CVE-2023-31470?

CVE-2023-31470 has been rated CRITICAL with a CVSS base score of 9.8/10. This is considered a critical vulnerability requiring immediate attention.

Is there a patch for CVE-2023-31470?

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