PT-2016-6781 · Isc+4 · Isc Bind+4
Yhpeng
·
Publicado
2016-07-06
·
Atualizado
2022-11-29
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CVE-2016-6170
CVSS v3.1
6.5
Média
| Vetor | AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |
Name of the Vulnerable Software and Affected Versions
ISC BIND versions 9.9.9 through 9.9.9-P1
ISC BIND versions 9.10.x through 9.10.4-P1
ISC BIND versions 9.11.x through 9.11.0b1
Description
The issue allows primary DNS servers to cause a denial of service (secondary DNS server crash) via a large AXFR response. It also possibly allows IXFR servers to cause a denial of service (IXFR client crash) via a large IXFR response. Additionally, remote authenticated users can cause a denial of service (primary DNS server crash) via a large UPDATE message.
Recommendations
For ISC BIND versions 9.9.9 through 9.9.9-P1, update to a version that includes the fix for this issue.
For ISC BIND versions 9.10.x through 9.10.4-P1, update to a version that includes the fix for this issue.
For ISC BIND versions 9.11.x through 9.11.0b1, update to a version that includes the fix for this issue.
As a temporary workaround, consider restricting the size of AXFR and IXFR responses to prevent large responses from causing a denial of service.
Restrict access to the UPDATE message functionality to minimize the risk of exploitation by remote authenticated users.
Exploit
Correção
DoS
RCE
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Enumeração de Fraquezas
Identificadores relacionados
Produtos afetados
Alt Linux
Bind Server
Isc Bind
Suse
Ubuntu