Attempting QNAME minimization after forwarding can lead to an assertion failure in resolver.c
21Vexday Risk Score
Sin señal de explotación. Ningún artefacto público de explotación conocido hasta ahora.
ssvc Trackcvss 7.5epss 3.0%
probabilidad de explotación
3.0%top 13% de las CVE
explotación observada
noninguna fuente lo reporta
In BIND 9.14.0 -> 9.16.5, 9.17.0 -> 9.17.3, If a server is configured with both QNAME minimization and 'forward first' then an attacker who can send queries to it may be able to trigger the condition that will cause the server to crash. Servers that 'forward only' are not affected.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Productos afectados
ISC · BIND9Referencias
http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00041.htmlhttp://lists.opensuse.org/opensuse-security-announce/2020-10/msg00044.htmlhttps://kb.isc.org/docs/cve-2020-8621https://security.gentoo.org/glsa/202008-19https://security.netapp.com/advisory/ntap-20200827-0003/https://usn.ubuntu.com/4468-1/https://www.synology.com/security/advisory/Synology_SA_20_19