CVE-2020-8622

CVSS V2 Medium 4 CVSS V3 Medium 6.5
Description
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.
Overview
  • CVE ID
  • CVE-2020-8622
  • Assigner
  • security-officer@isc.org
  • Vulnerability Status
  • Analyzed
  • Published Version
  • 2020-08-21T21:15:12
  • Last Modified Date
  • 2021-12-02T22:19:28
Weakness Enumerations
CWE URL
CWE-617 http://cwe.mitre.org/data/definitions/617.html
CPE Configuration (Product)
CPE Vulnerable Operator Version Start Version End
cpe:2.3:a:isc:bind:*:*:*:*:*:*:*:* 1 OR 9.0.0 9.11.21
cpe:2.3:a:isc:bind:*:*:*:*:*:*:*:* 1 OR 9.12.0 9.16.5
cpe:2.3:a:isc:bind:*:*:*:*:*:*:*:* 1 OR 9.17.0 9.17.3
cpe:2.3:a:isc:bind:9.9.3:s1:*:*:supported_preview:*:*:* 1 OR
cpe:2.3:a:isc:bind:9.11.21:s1:*:*:supported_preview:*:*:* 1 OR
cpe:2.3:o:fedoraproject:fedora:31:*:*:*:*:*:*:* 1 OR
cpe:2.3:o:fedoraproject:fedora:32:*:*:*:*:*:*:* 1 OR
cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:* 1 OR
cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:* 1 OR
cpe:2.3:o:canonical:ubuntu_linux:12.04:*:*:*:-:*:*:* 1 OR
cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:esm:*:*:* 1 OR
cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:esm:*:*:* 1 OR
cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:* 1 OR
cpe:2.3:o:canonical:ubuntu_linux:20.04:*:*:*:lts:*:*:* 1 OR
cpe:2.3:a:netapp:steelstore_cloud_integrated_storage:-:*:*:*:*:*:*:* 1 OR
cpe:2.3:o:opensuse:leap:15.1:*:*:*:*:*:*:* 1 OR
cpe:2.3:o:opensuse:leap:15.2:*:*:*:*:*:*:* 1 OR
cpe:2.3:a:synology:dns_server:*:*:*:*:*:*:*:* 1 OR 2.2.2-5028
cpe:2.3:a:oracle:communications_diameter_signaling_router:*:*:*:*:*:*:*:* 1 OR 8.0.0 8.5.0
CVSS Version 2
  • Version
  • 2.0
  • Vector String
  • AV:N/AC:L/Au:S/C:N/I:N/A:P
  • Access Vector
  • NETWORK
  • Access Compatibility
  • LOW
  • Authentication
  • SINGLE
  • Confidentiality Impact
  • NONE
  • Integrity Impact
  • NONE
  • Availability Impact
  • PARTIAL
  • Base Score
  • 4
  • Severity
  • MEDIUM
  • Exploitability Score
  • 8
  • Impact Score
  • 2.9
CVSS Version 3
  • Version
  • 3.1
  • Vector String
  • CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
  • Attack Vector
  • NETWORK
  • Attack Compatibility
  • LOW
  • Privileges Required
  • LOW
  • User Interaction
  • NONE
  • Scope
  • UNCHANGED
  • Confidentiality Impact
  • NONE
  • Availability Impact
  • HIGH
  • Base Score
  • 6.5
  • Base Severity
  • MEDIUM
  • Exploitability Score
  • 2.8
  • Impact Score
  • 3.6
References
Reference URL Reference Tags
https://kb.isc.org/docs/cve-2020-8622 Vendor Advisory
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/DQN62GBMCIC5AY4KYADGXNKVY6AJKSJE/ Third Party Advisory
https://security.netapp.com/advisory/ntap-20200827-0003/ Third Party Advisory
https://usn.ubuntu.com/4468-1/ Third Party Advisory
https://usn.ubuntu.com/4468-2/ Third Party Advisory
https://www.debian.org/security/2020/dsa-4752 Third Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/ZKAMJZXR66P6S5LEU4SN7USSNCWTXEXP/ Mailing List Third Party Advisory
https://lists.debian.org/debian-lts-announce/2020/08/msg00053.html Mailing List Third Party Advisory
https://www.synology.com/security/advisory/Synology_SA_20_19 Third Party Advisory
https://security.gentoo.org/glsa/202008-19 Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00041.html Mailing List Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00044.html Mailing List Third Party Advisory
https://www.oracle.com/security-alerts/cpuoct2021.html Patch Third Party Advisory
Sources
Source Name Source URL
NIST https://nvd.nist.gov/vuln/detail/CVE-2020-8622
MITRE https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-8622
History
Created Old Value New Value Data Type Notes
2022-05-10 06:43:24 Added to TrackCVE
2022-12-04 21:24:55 2020-08-21T21:15Z 2020-08-21T21:15:12 CVE Published Date updated
2022-12-04 21:24:55 2021-12-02T22:19:28 CVE Modified Date updated
2022-12-04 21:24:55 Analyzed Vulnerability Status updated