5.3Mittel

CVE-2022-2795Processing large delegations may severely degrade resolver performance

ISC BIND9; isc bind Veröffentlicht: 2022-09-21 13:15 (vor 4 Jahren)

Beschreibung

By flooding the target resolver with queries exploiting this flaw an attacker can significantly impair the resolver's performance, effectively denying legitimate clients access to the DNS resolution service.

Daten: CVE.org, NVD, CISA KEV, FIRST EPSS, Ubuntu. Wiedergegeben wie in der Quelle, auf Englisch.

Betroffene Produkte und Versionen

Hersteller	Produkt	Versionen
isc	bind	9.0.0 – ≤ 9.16.32
ISC	BIND9	Open Source Branches 9.0 through 9.16 9.0.0 through versions before 9.16.33, Open Source Branch 9.18 9.18.0 through versions before 9.18.7, Supported Preview Branches 9.9-S through 9.11-S 9.9.3-S1 through versions up to and including 9.11.37-S1, Supported Preview Branch 9.16-S 9.16.8-S1 through versions before 9.16.33-S1, Development Branch 9.19 9.19.0 through versions before 9.19.5

Referenzen und Patches

https://kb.isc.org/docs/cve-2022-2795
[oss-security] 20220921 ISC has disclosed six vulnerabilities in BIND (CVE-2022-2795, CVE-2022-2881, CVE-2022-2906, CVE-2022-3080, CVE-2022-38177, CVE-2022-38178) mailing-list
DSA-5235 vendor-advisory
FEDORA-2022-ef038365de vendor-advisory
FEDORA-2022-8268735e06 vendor-advisory
FEDORA-2022-b197d64471 vendor-advisory
[debian-lts-announce] 20221005 [SECURITY] [DLA 3138-1] bind9 security update mailing-list
GLSA-202210-25 vendor-advisory

CVSS-Score

5.3Mittel

Quelle: isc · CVSS 3.1

Angriffsvektor: Netzwerk
Komplexität: Niedrig
Rechte erforderlich: Keine
Benutzerinteraktion: Keine
Geltungsbereich: Unverändert
Vertraulichkeit: Keine
Integrität: Keine
Verfügbarkeit: Niedrig

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

EPSS (Ausnutzungswahrscheinlichkeit in 30 Tagen)

2.29%

höher als 83 % aller CVEs

CISA-Bewertung (SSVC)

Ausnutzung: none
Automatisierbar: yes
Technische Auswirkung: partial

Zeitverlauf

ID reserviert2022-08-12
Veröffentlicht2022-09-21 13:15
Bei IP-DB eingegangen2026-10-24 23:37
Zuletzt aktualisiert2024-11-29 15:04

Vergeben von (CNA): isc

In der Quelle ansehen: CVE.org · NVD

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