PT-2019-4818 · Isc+6 · Bind+6

Publicado 2019-04-24 · Atualizado 2024-06-15 · CVE-2018-5743

Positive Technologies (AI Summary)

CVSS v3.1

7.5

Alta

Vetor base

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

Name of the Vulnerable Software and Affected Versions BIND versions 9.9.0 through 9.10.8-P1 BIND versions 9.11.0 through 9.11.6 BIND versions 9.12.0 through 9.12.4 BIND version 9.14.0 BIND 9 Supported Preview Edition versions 9.9.3-S1 through 9.11.5-S3 BIND 9 Supported Preview Edition version 9.11.5-S5 BIND versions 9.13.0 through 9.13.7

Description The issue is related to the failure to limit the number of simultaneous TCP connections, which can be exploited to cause a denial of service. This can lead to exhaustion of the pool of file descriptors available to named. The vulnerability is also associated with unlimited resource allocation in the managed-keys function of the DNS server.

Recommendations For BIND versions 9.9.0 through 9.10.8-P1, update to a version outside of this range to mitigate the risk. For BIND versions 9.11.0 through 9.11.6, update to a version outside of this range to mitigate the risk. For BIND versions 9.12.0 through 9.12.4, update to a version outside of this range to mitigate the risk. For BIND version 9.14.0, update to a version outside of this range to mitigate the risk. For BIND 9 Supported Preview Edition versions 9.9.3-S1 through 9.11.5-S3, update to a version outside of this range to mitigate the risk. For BIND 9 Supported Preview Edition version 9.11.5-S5, update to a version outside of this range to mitigate the risk. For BIND versions 9.13.0 through 9.13.7, update to a version outside of this range to mitigate the risk. As a temporary workaround, consider restricting the number of simultaneous TCP connections to prevent exhaustion of file descriptors.

Exploit

Correção

DoS

Allocation of Resources Without Limits

Enumeração de Fraquezas

CWE-770

Identificadores relacionados

ALT-PU-2019-1739

BDU:2020-01402

CESA-2019_1145

CESA-2019_1294

CESA-2019_1492

CVE-2018-5743

DLA-1859-1

DSA-4440-1

MGASA-2019-0299

OPENSUSE-SU-2019:1533-1

OPENSUSE-SU-2019_1532-1

OPENSUSE-SU-2019_1533-1

OPENSUSE-SU-2024:10650-1

RHSA-2019:1145

RHSA-2019:1294

RHSA-2019:1492

RHSA-2019:2698

RHSA-2019:2977

RHSA-2019_1145

RHSA-2019_1294

RHSA-2019_1492

SUSE-SU-2019:1407-1

SUSE-SU-2019:14074-1

SUSE-SU-2019:1449-1

SUSE-SU-2019:2502-1

SUSE-SU-2019_1407-1

SUSE-SU-2019_14074-1

SUSE-SU-2019_1449-1

USN-3956-1

USN-3956-2

Produtos afetados

Alt Linux

Bind

Bind Server

Centos

Red Hat

Suse

Ubuntu

Referências · 119

• 🔥 https://github.com/sischkg/cve-2018-5740 · Exploit
• https://suse.com/security/cve/CVE-2019-6477 · Nota
• https://osv.dev/vulnerability/DLA-1859-1 · Aviso do Fabricante
• https://osv.dev/vulnerability/SUSE-SU-2019:14074-1 · Aviso do Fabricante
• https://lists.centos.org/pipermail/centos-announce/2019-June/023331.html · Nota
• https://suse.com/security/cve/CVE-2018-5740 · Nota
• https://security-tracker.debian.org/tracker/CVE-2018-5743 · Aviso do Fabricante
• https://lists.centos.org/pipermail/centos-announce/2019-June/035369.html · Nota
• https://ubuntu.com/security/notices/USN-3956-1 · Aviso do Fabricante
• https://suse.com/security/cve/CVE-2007-2925 · Nota
• https://lists.centos.org/pipermail/centos-announce/2019-June/060240.html · Nota
• https://wiki.astralinux.ru/pages/viewpage.action?pageId=57444186 · Aviso do Fabricante
• https://bugzilla.suse.com/1138687 · Nota
• https://suse.com/security/cve/CVE-2019-6465.html · Nota
• https://bugzilla.suse.com/1126068 · Nota