CVE-2024-25581

May 14, 2024, 4:13 p.m.

Tags

CWE-20
security@open-xchange.com
2024-05-14
CVE-2024-25581

CVSS Score

7.5 / 10

Product(s) Impacted

DNSdist

Description

When incoming DNS over HTTPS support is enabled using the nghttp2 provider, and queries are routed to a tcp-only or DNS over TLS backend, an attacker can trigger an assertion failure in DNSdist by sending a request for a zone transfer (AXFR or IXFR) over DNS over HTTPS, causing the process to stop and thus leading to a Denial of Service. DNS over HTTPS is not enabled by default, and backends are using plain DNS (Do53) by default.

Weaknesses

Date

Published: May 14, 2024, 3:05 p.m.

Last Modified: May 14, 2024, 4:13 p.m.

Status : Awaiting Analysis

CVE has been recently published to the CVE List and has been received by the NVD.

More info

Source

security@open-xchange.com

CVSS Data

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

Base Score
7.5
Exploitability Score
Impact Score
Base Severity
HIGH
CVSS Vector String

The CVSS vector string provides an in-depth view of the vulnerability metrics.

View Vector String

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

References

https://dnsdist.org/security-advisories/powerdns-advisory-for-dnsdist-2024-03.html
security@open-xchange.com