Executive Summary

Informations
Name CVE-2020-8622 First vendor Publication 2020-08-21
Vendor Cve Last vendor Modification 2020-10-20

Security-Database Scoring CVSS v3

Cvss vector : CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Overall CVSS Score 6.5
Base Score 6.5 Environmental Score 6.5
impact SubScore 3.6 Temporal Score 6.5
Exploitabality Sub Score 2.8
 
Attack Vector Network Attack Complexity Low
Privileges Required Low User Interaction None
Scope Unchanged Confidentiality Impact None
Integrity Impact None Availability Impact High
Calculate full CVSS 3.0 Vectors scores

Security-Database Scoring CVSS v2

Cvss vector : (AV:N/AC:L/Au:S/C:N/I:N/A:P)
Cvss Base Score 4 Attack Range Network
Cvss Impact Score 2.9 Attack Complexity Low
Cvss Expoit Score 8 Authentication Requires single instance
Calculate full CVSS 2.0 Vectors scores

Detail

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.

Original Source

Url : http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-8622

CWE : Common Weakness Enumeration

% Id Name
100 % CWE-617 Reachable Assertion

CPE : Common Platform Enumeration

TypeDescriptionCount
Application 648
Os 1

Sources (Detail)

Source Url
CONFIRM https://kb.isc.org/docs/cve-2020-8622
https://security.netapp.com/advisory/ntap-20200827-0003/
https://www.synology.com/security/advisory/Synology_SA_20_19
DEBIAN https://www.debian.org/security/2020/dsa-4752
FEDORA https://lists.fedoraproject.org/archives/list/package-announce@lists.fedorapr...
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedorapr...
GENTOO https://security.gentoo.org/glsa/202008-19
MLIST https://lists.debian.org/debian-lts-announce/2020/08/msg00053.html
SUSE http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00041.html
http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00044.html
UBUNTU https://usn.ubuntu.com/4468-1/
https://usn.ubuntu.com/4468-2/

Alert History

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Date Informations
2021-05-08 12:37:35
  • Multiple Updates
2021-05-05 01:41:33
  • Multiple Updates
2021-05-04 14:05:51
  • Multiple Updates
2021-04-22 03:11:11
  • Multiple Updates
2021-03-27 01:36:18
  • Multiple Updates
2020-12-10 12:31:03
  • Multiple Updates
2020-12-10 01:31:20
  • Multiple Updates
2020-10-21 01:30:17
  • Multiple Updates
2020-10-21 01:29:47
  • Multiple Updates
2020-10-20 17:23:01
  • Multiple Updates
2020-10-20 09:23:01
  • Multiple Updates
2020-09-03 01:31:14
  • Multiple Updates
2020-09-02 17:23:20
  • First insertion