CVE-2022-2795medium

CVE-2022-2795: fallo de gravedad media en ISC BIND9

Processing large delegations may severely degrade resolver performance

Publicada el · Actualizada el

Seguir esta CVE+ Monitorear BIND9+ Monitorear bind9

Aviso por correo cuando entre en el KEV, tenga PoC pública o suba de nota.

13Vexday Risk Score

Sin señal de explotación. Ningún artefacto público de explotación conocido hasta ahora.

ssvc Trackcvss 5.3epss 2.3%
By flooding the target resolver with queries exploiting this flaw an attacker can significantly impair the resolver's performance, effectively denying legitimate clients access to the DNS resolution service.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
Productos afectados
ISC · BIND9
CVEs relacionadas — ISC BIND9

En el mismo producto, de las más peligrosas a las menos.

CVE-2020-8617HIGHA logic error in code which checks TSIG validity can be used to trigger an assertion failure in tsig.cEPSS 93.3%CVE-2021-25216HIGHA second vulnerability in BIND's GSSAPI security policy negotiation can be targeted by a buffer overflow attackEPSS 83.0%CVE-2020-8625HIGHA vulnerability in BIND's GSSAPI security policy negotiation can be targeted by a buffer overflow attackEPSS 64.2%CVE-2021-25215HIGHAn assertion check can fail while answering queries for DNAME records that require the DNAME to be processed to resolve itselfEPSS 11.7%CVE-2021-25219MEDIUMLame cache can be abused to severely degrade resolver performanceEPSS 11.2%CVE-2020-8616HIGHBIND does not sufficiently limit the number of fetches performed when processing referralsEPSS 10.9%