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debianDebianDEBIAN:DLA-2355-1:B11A3
HistoryAug 29, 2020 - 9:30 p.m.

[SECURITY] [DLA 2355-1] bind9 security update

2020-08-2921:30:34
lists.debian.org
70

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

89.4%


Debian LTS Advisory DLA-2355-1 [email protected]
https://www.debian.org/lts/security/ Thorsten Alteholz
August 29, 2020 https://wiki.debian.org/LTS


Package : bind9
Version : 1:9.10.3.dfsg.P4-12.3+deb9u7
CVE ID : CVE-2020-8622 CVE-2020-8623

Two issues have been found in bind9, an Internet Domain Name Server.

CVE-2020-8622

 Crafted responses to TSIG-signed requests could lead to an assertion
 failure, causing the server to exit. This could be done by malicious
 server operators or guessing attackers.

CVE-2020-8623

 An assertions failure, causing the server to exit, can be exploited
 by a query for an RSA signed zone.

For Debian 9 stretch, these problems have been fixed in version
1:9.10.3.dfsg.P4-12.3+deb9u7.

We recommend that you upgrade your bind9 packages.

For the detailed security status of bind9 please refer to
its security tracker page at:
https://security-tracker.debian.org/tracker/bind9

Further information about Debian LTS security advisories, how to apply
these updates to your system and frequently asked questions can be
found at: https://wiki.debian.org/LTS

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

89.4%

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