Fedora EPEL 9 update for ntpsec



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
 Fedora
Operating systems & Components / Operating system

ntpsec
Operating systems & Components / Operating system package or component

Vendor Fedoraproject

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 repository.

Vulnerable software versions

Fedora: 9

ntpsec: before 1.2.2a-1.el9

CPE2.3 External links

http://bodhi.fedoraproject.org/updates/FEDORA-EPEL-2023-02f7139d40


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.



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