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ubuntucveUbuntu.comUB:CVE-2020-8621
HistoryAug 20, 2020 - 12:00 a.m.

CVE-2020-8621

2020-08-2000:00:00
ubuntu.com
ubuntu.com
13

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

0.007 Low

EPSS

Percentile

80.6%

JSON

In BIND 9.14.0 -> 9.16.5, 9.17.0 -> 9.17.3, If a server is configured with
both QNAME minimization and ‘forward first’ then an attacker who can send
queries to it may be able to trigger the condition that will cause the
server to crash. Servers that ‘forward only’ are not affected.

Notes

Author Note
alexmurray Affects versions 9.14.0 -> 9.16.5, 9.17.0 -> 9.17.3
OSVersionArchitecturePackageVersionFilename
ubuntu20.04noarchbind9< 1:9.16.1-0ubuntu2.3UNKNOWN

Related

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ISC BIND DoS Vulnerability (CVE-2020-8621) - Windows
2020-08-21 00:00:00
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2020-08-22 00:00:00
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Ubuntu 16.04 LTS / 18.04 LTS / 20.04 LTS : Bind vulnerabilities (USN-4468-1)
2020-08-24 00:00:00
GLSA-202008-19 : BIND: Multiple vulnerabilities
2020-08-31 00:00:00
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2020-10-08 18:09:52
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2020-08-31 04:08:30
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K75649300 : BIND vulnerability CVE-2020-8621
2020-08-21 00:00:00
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2020-08-21 00:00:00
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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

0.007 Low

EPSS

Percentile

80.6%

JSON
Related for UB:CVE-2020-8621
osv1debiancve1alpinelinux1openvas6nessus6cbl_mariner1prion1cve1redhatcve1veracode1f51cisa1ubuntu1gentoo1suse2