Denial of service in NTPsec



Published: 2023-08-06
Risk Medium
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2023-4012
CWE-ID CWE-908
Exploitation vector Network
Public exploit N/A
Vulnerable software
Subscribe 		NTPsec
Client/Desktop applications / Encryption software

Vendor The NTPsec project

Security Bulletin

This security bulletin contains one medium risk vulnerability.

1) Use of uninitialized resource

EUVDB-ID: #VU78975

Risk: Medium

CVSSv3.1: 6.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2023-4012

CWE-ID: CWE-908 - Use of Uninitialized Resource

Exploit availability: No

Description

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

The vulnerability exists due to usage of uninitialized resources in ntpd/nts_cookie.c when processing NTS requests in a server with disabled NTS support. A remote attacker can send an NTS-enabled client request (mode 3) to the server and perform a denial of service (DoS) attack.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

NTPsec: 1.0.0 - 1.2.2

External links

http://gitlab.com/NTPsec/ntpsec/-/issues/794


Q & A

Can this vulnerability be exploited remotely?

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

Is there known malware, which exploits this vulnerability?

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



###SIDEBAR###