CVE-2020-8623

HIGH

BIND 9.10.0-9.11.21, 9.12.0-9.16.5, 9.17.0-9.17.3 - Reachable Assertion via Crafted Query Packet

Title source: llm
STIX 2.1

Description

In BIND 9.10.0 -> 9.11.21, 9.12.0 -> 9.16.5, 9.17.0 -> 9.17.3, also affects 9.10.5-S1 -> 9.11.21-S1 of the BIND 9 Supported Preview Edition, An attacker that can reach a vulnerable system with a specially crafted query packet can trigger a crash. To be vulnerable, the system must: * be running BIND that was built with "--enable-native-pkcs11" * be signing one or more zones with an RSA key * be able to receive queries from a possible attacker

References (11)

Core 11
Core References
Vendor Advisory x_refsource_confirm
https://kb.isc.org/docs/cve-2020-8623
Third Party Advisory x_refsource_confirm
https://security.netapp.com/advisory/ntap-20200827-0003/
Third Party Advisory vendor-advisory x_refsource_ubuntu
https://usn.ubuntu.com/4468-1/
Third Party Advisory vendor-advisory x_refsource_debian
https://www.debian.org/security/2020/dsa-4752
Mailing List, Third Party Advisory mailing-list x_refsource_mlist
https://lists.debian.org/debian-lts-announce/2020/08/msg00053.html
Third Party Advisory vendor-advisory x_refsource_gentoo
https://security.gentoo.org/glsa/202008-19
Third Party Advisory x_refsource_confirm
https://www.synology.com/security/advisory/Synology_SA_20_19
Mailing List, Third Party Advisory vendor-advisory x_refsource_suse
http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00041.html
Mailing List, Third Party Advisory vendor-advisory x_refsource_suse
http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00044.html

Scores

CVSS v3 7.5
EPSS 0.1832
EPSS Percentile 95.3%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Details

CWE
CWE-617
Status published
Products (14)
canonical/ubuntu_linux 16.04
canonical/ubuntu_linux 18.04
canonical/ubuntu_linux 20.04
debian/debian_linux 9.0
debian/debian_linux 10.0
fedoraproject/fedora 31
fedoraproject/fedora 32
isc/bind 9.10.5 s1
isc/bind 9.11.21 s1
isc/bind 9.10.0 - 9.11.21
... and 4 more
Published Aug 21, 2020
Tracked Since Feb 18, 2026