CVSS2
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
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
AI Score
Confidence
High
EPSS
Percentile
90.1%
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
CVSS2
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
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
AI Score
Confidence
High
EPSS
Percentile
90.1%