CVE-2020-8623

2020-08-2000:00:00

ubuntu.com

7.5 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

4.3 Medium

CVSS2

Access Vector

NETWORK

Access Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

PARTIAL

AV:N/AC:M/Au:N/C:N/I:N/A:P

0.023 Low

EPSS

Percentile

89.5%

JSON

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

Notes

Author	Note
alexmurray	Affects versions 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

OSVersionArchitecturePackageVersionFilename
ubuntu18.04noarchbind9< 1:9.11.3+dfsg-1ubuntu1.13UNKNOWN
ubuntu20.04noarchbind9< 1:9.16.1-0ubuntu2.3UNKNOWN
ubuntu16.04noarchbind9< 1:9.10.3.dfsg.P4-8ubuntu1.17UNKNOWN

OS	Version	Architecture	Package	Version	Filename
ubuntu	18.04	noarch	bind9	< 1:9.11.3+dfsg-1ubuntu1.13	UNKNOWN
ubuntu	20.04	noarch	bind9	< 1:9.16.1-0ubuntu2.3	UNKNOWN
ubuntu	16.04	noarch	bind9	< 1:9.10.3.dfsg.P4-8ubuntu1.17	UNKNOWN