PT-2019-11613 · Cz.Nic+2 · Knot Resolver+2

Petr Špaček · Publicado 2019-07-10 · Atualizado 2024-10-01 · CVE-2019-10190

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:H/A:N

Name of the Vulnerable Software and Affected Versions: knot resolver versions prior to 4.1.0

Description: A vulnerability was discovered in the DNS resolver component that allows remote attackers to bypass DNSSEC validation for non-existence answers. Specifically, NXDOMAIN answers would get passed through to the client even if their DNSSEC validation failed, instead of sending a SERVFAIL packet. Caching is not affected by this bug.

Recommendations: For versions prior to 4.1.0, update to version 4.1.0 or later to resolve the issue. As a temporary workaround, consider restricting the DNS resolver component to minimize the risk of exploitation.

Correção

RCE

Enumeração de Fraquezas

CWE-20

Identificadores relacionados

CVE-2019-10190

DLA-3795-1

USN-7047-1

Produtos afetados

Linuxmint

Ubuntu

Knot Resolver

Referências · 28

• https://t.me/cvenotify/78101 · Publicação no Telegram
• https://osv.dev/vulnerability/UBUNTU-CVE-2019-10190 · Aviso do Fabricante
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/VZV5YZZ5766UIG2TFLFJL6EESQNAP5X5 · Aviso do Fabricante
• https://lists.debian.org/debian-lts-announce/2024/04/msg00017.html · Nota
• https://osv.dev/vulnerability/DEBIAN-CVE-2019-10190 · Aviso do Fabricante
• https://ubuntu.com/security/CVE-2020-12667 · Aviso do Fabricante
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-10190 · Nota de Segurança
• https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-19331 · Nota
• https://osv.dev/vulnerability/USN-7047-1 · Aviso do Fabricante
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/TMSSWBHINIX4WE6UDXWM66L7JYEK6XS6 · Aviso do Fabricante
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-19331 · Nota de Segurança
• https://osv.dev/vulnerability/DLA-3795-1 · Aviso do Fabricante
• https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-10190 · Nota
• https://ubuntu.com/security/CVE-2019-10191 · Aviso do Fabricante
• https://cve.org/CVERecord?id=CVE-2019-10190 · Nota de Segurança