Denial of service in smartdns



Risk Medium
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2024-24198
CWE-ID CWE-20
Exploitation vector Network
Public exploit N/A
Vulnerable software
 smartdns
Server applications / DNS servers

Vendor Nick Peng

Security Bulletin

This security bulletin contains one medium risk vulnerability.

1) Input validation error

EUVDB-ID: #VU105994

Risk: Medium

CVSSv4.0: 4.9 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2024-24198

CWE-ID: CWE-20 - Improper input validation

Exploit availability: No

Description

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to insufficient validation of user-supplied input in src/util.c. A remote attacker can pass specially crafted IP address in the DNS response to the server and perform a denial of service (DoS) attack.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

smartdns: 45 - 46

CPE2.3 External links

https://github.com/pymumu/smartdns/issues/1629


Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

How the attacker can exploit this vulnerability?

The attacker would have to send a specially crafted request to the affected application in order to exploit this vulnerability.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.



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