Design/Logic Flaw

2020-08-2121:15:00

PRIOn knowledge base

www.prio-n.com

6.5 Medium

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

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

6.6 Medium

AI Score

Confidence

High

4 Medium

CVSS2

Access Vector

NETWORK

Access Complexity

LOW

Authentication

SINGLE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

PARTIAL

AV:N/AC:L/Au:S/C:N/I:N/A:P

0.004 Low

EPSS

Percentile

73.8%

JSON

In BIND 9.0.0 -> 9.11.21, 9.12.0 -> 9.16.5, 9.17.0 -> 9.17.3, also affects 9.9.3-S1 -> 9.11.21-S1 of the BIND 9 Supported Preview Edition, An attacker on the network path for a TSIG-signed request, or operating the server receiving the TSIG-signed request, could send a truncated response to that request, triggering an assertion failure, causing the server to exit. Alternately, an off-path attacker would have to correctly guess when a TSIG-signed request was sent, along with other characteristics of the packet and message, and spoof a truncated response to trigger an assertion failure, causing the server to exit.

CPENameOperatorVersion
ubuntu_linuxeq18.04
ubuntu_linuxeq14.04
ubuntu_linuxeq20.04
ubuntu_linuxeq16.04
ubuntu_linuxeq12.04
debian_linuxeq9.0
debian_linuxeq10.0
fedoraeq31
fedoraeq32
bindge9.17.0

Name	Operator	Version
ubuntu_linux	eq	18.04
ubuntu_linux	eq	14.04
ubuntu_linux	eq	20.04
ubuntu_linux	eq	16.04
ubuntu_linux	eq	12.04
debian_linux	eq	9.0
debian_linux	eq	10.0
fedora	eq	31
fedora	eq	32
bind	ge	9.17.0