PT-2019-3471 · Powerdns+2 · Powerdns Authoritative Server+2
George Asenov
·
Publicado
2019-01-21
·
Atualizado
2024-06-15
·
CVE-2019-10163
CVSS v3.1
4.3
Média
| Vetor | AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L |
Name of the Vulnerable Software and Affected Versions
PowerDNS Authoritative Server versions prior to 4.1.9
PowerDNS Authoritative Server versions prior to 4.0.8
Description
The issue is related to an uncontrolled resource consumption in the PowerDNS server. It can be exploited by a remote attacker to cause a denial of service by sending a large number of notifications, potentially leading to a high CPU load or preventing further updates to any slave zone. Only servers configured as slaves are affected by this issue.
Recommendations
For PowerDNS Authoritative Server versions prior to 4.1.9, update to version 4.1.9 or later to resolve the issue.
For PowerDNS Authoritative Server versions prior to 4.0.8, update to version 4.0.8 or later to resolve the issue.
As a temporary workaround, consider restricting access to the
NOTIFY messages to minimize the risk of exploitation.Correção
Allocation of Resources Without Limits
Resource Exhaustion
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Identificadores relacionados
Produtos afetados
Alt Linux
Powerdns Authoritative Server
Suse