CVE-2024-2169
Description
A vulnerability was found in certain UPD protocol implementations. This issue may allow an unauthenticated attacker to send maliciously crafted packages leading to a denial of service on the targeted system. An attacker needs to perform the attack on a vulnerable server in order to meet the conditions to create the necessary traffic-loop for a successful attack.
Statement
Red Hat is aware of the existence of CVE-2024-2169 and has investigated the impact in several packages distributed across Red Hat Enterprise Linux versions. The versions of the NTP package shipped with Red Hat Enterprise Linux 6 and 7 are not vulnerable to this attack, as this issue was dependent on CVE-2009-3563 present in ntp up to 4.2.4p8 and 4.2.5, which are older than the versions shipped with the mentioned products.
Package implementations of DNS (such as dnsmasq and bind), tftp, and dhcp packages as distributed with Red Hat Enterprise Linux are not affected by this vulnerability as all of it uses a random source port for response, making it impossible to perform a traffic-loop attack.
Common Vulnerability Scoring System (CVSS) Score Details
Info alert:Important note
CVSS scores for open source components depend on vendor-specific factors (e.g. version or build chain). Therefore, Red Hat's score and impact rating can be different from NVD and other vendors. Red Hat remains the authoritative CVE Naming Authority (CNA) source for its products and services (see Red Hat classifications).
The following CVSS metrics and score provided are preliminary and subject to review.
CVSS v3 Score Breakdown
| Red Hat | NVD | cve.org | |
|---|---|---|---|
| Base Score | 7.5 | N/A | N/A |
| Attack Vector | Network | N/A | N/A |
| Attack Complexity | Low | N/A | N/A |
| Privileges Required | None | N/A | N/A |
| User Interaction | None | N/A | N/A |
| Scope | Unchanged | N/A | N/A |
| Confidentiality | None | N/A | N/A |
| Integrity Impact | None | N/A | N/A |
| Availability Impact | High | N/A | N/A |
Vector
Red Hat: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
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