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nvd[email protected]NVD:CVE-2020-8617
HistoryMay 19, 2020 - 2:15 p.m.

CVE-2020-8617

2020-05-1914:15:11
CWE-617
[email protected]
web.nvd.nist.gov
7

CVSS2

4.3

Attack Vector

NETWORK

Attack 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

CVSS3

5.9

Attack Vector

NETWORK

Attack Complexity

HIGH

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

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

AI Score

7.8

Confidence

High

EPSS

0.972

Percentile

99.9%

JSON

Using a specially-crafted message, an attacker may potentially cause a BIND server to reach an inconsistent state if the attacker knows (or successfully guesses) the name of a TSIG key used by the server. Since BIND, by default, configures a local session key even on servers whose configuration does not otherwise make use of it, almost all current BIND servers are vulnerable. In releases of BIND dating from March 2018 and after, an assertion check in tsig.c detects this inconsistent state and deliberately exits. Prior to the introduction of the check the server would continue operating in an inconsistent state, with potentially harmful results.

Affected configurations

Nvd
Node
iscbindRange9.0.0–9.11.18
OR
iscbindRange9.12.0–9.12.4
OR
iscbindRange9.13.0–9.13.7
OR
iscbindRange9.14.0–9.14.11
OR
iscbindRange9.15.0–9.15.6
OR
iscbindRange9.16.0–9.16.2
OR
iscbindRange9.17.0–9.17.1
OR
iscbindMatch9.12.4p1
OR
iscbindMatch9.12.4p2
Node
iscbindMatch9.9.3s1supported_preview
OR
iscbindMatch9.10.5s1supported_preview
OR
iscbindMatch9.10.7s1supported_preview
OR
iscbindMatch9.11.3s1supported_preview
OR
iscbindMatch9.11.5s3supported_preview
OR
iscbindMatch9.11.5s5supported_preview
OR
iscbindMatch9.11.6s1supported_preview
OR
iscbindMatch9.11.7s1supported_preview
OR
iscbindMatch9.11.8s1supported_preview
Node
debiandebian_linuxMatch8.0
OR
debiandebian_linuxMatch9.0
OR
debiandebian_linuxMatch10.0
Node
fedoraprojectfedoraMatch31
OR
fedoraprojectfedoraMatch32
Node
opensuseleapMatch15.1
OR
opensuseleapMatch15.2
Node
canonicalubuntu_linuxMatch12.04-
OR
canonicalubuntu_linuxMatch14.04esm
OR
canonicalubuntu_linuxMatch16.04esm
OR
canonicalubuntu_linuxMatch18.04lts
OR
canonicalubuntu_linuxMatch19.10
OR
canonicalubuntu_linuxMatch20.04lts
VendorProductVersionCPE
iscbind*cpe:2.3:a:isc:bind:*:*:*:*:*:*:*:*
iscbind9.12.4cpe:2.3:a:isc:bind:9.12.4:p1:*:*:*:*:*:*
iscbind9.12.4cpe:2.3:a:isc:bind:9.12.4:p2:*:*:*:*:*:*
iscbind9.9.3cpe:2.3:a:isc:bind:9.9.3:s1:*:*:supported_preview:*:*:*
iscbind9.10.5cpe:2.3:a:isc:bind:9.10.5:s1:*:*:supported_preview:*:*:*
iscbind9.10.7cpe:2.3:a:isc:bind:9.10.7:s1:*:*:supported_preview:*:*:*
iscbind9.11.3cpe:2.3:a:isc:bind:9.11.3:s1:*:*:supported_preview:*:*:*
iscbind9.11.5cpe:2.3:a:isc:bind:9.11.5:s3:*:*:supported_preview:*:*:*
iscbind9.11.5cpe:2.3:a:isc:bind:9.11.5:s5:*:*:supported_preview:*:*:*
iscbind9.11.6cpe:2.3:a:isc:bind:9.11.6:s1:*:*:supported_preview:*:*:*
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1-10 of 251

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CVSS2

4.3

Attack Vector

NETWORK

Attack 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

CVSS3

5.9

Attack Vector

NETWORK

Attack Complexity

HIGH

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

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

AI Score

7.8

Confidence

High

EPSS

0.972

Percentile

99.9%

JSON
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