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CVE-2020-8622
CVE information
Published
Last Modified
CVSSv2.0 Severity
CVSSv3.1 Severity
Impact Analysis
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..
CVSSv2.0 Score
- Severity
- Medium
- Base Score
- 4/10
- Exploit Score
- 8/10
- Access Vector
- Network
- Access Complexity
- Low
- Authentication Required
- Single
- Impact Score
- 2.9/10
- Confidentiality Impact
- None
- Availability Impact
- Partial
- Integrity Impact
- None
CVSSv3.1 Score
- Severity
- Medium
- Base Score
- 6.5/10
- Exploit Score
- 2.8/10
- Access Vector
- Network
- Access Complexity
- Low
- Privileges Required
- Low
- Impact Score
- 3.6/10
- Confidentiality Impact
- None
- Availability Impact
- High
- Integrity Impact
- None
- Scope
- Unchanged
- User Interaction
- None
Products Affected
CPE | Affected | Vulnerable | Excluding | Edit |
---|---|---|---|---|
cpe:2.3:a:isc:bind:*:*:*:*:*:*:*:* |
Yes
|
9.17.0 | - | |
cpe:2.3:a:isc:bind:*:*:*:*:*:*:*:* |
Yes
|
9.0.0 | - | |
cpe:2.3:a:isc:bind:*:*:*:*:*:*:*:* |
Yes
|
9.12.0 | - | |
cpe:2.3:a:isc:bind:9.9.3:s1:*:*:supported_preview:*:*:* |
Yes
|
- | - | |
cpe:2.3:a:isc:bind:9.11.21:s1:*:*:supported_preview:*:*:* |
Yes
|
- | - | |
cpe:2.3:o:fedoraproject:fedora:31:*:*:*:*:*:*:* |
Yes
|
- | - | |
cpe:2.3:o:fedoraproject:fedora:32:*:*:*:*:*:*:* |
Yes
|
- | - | |
cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:* |
Yes
|
- | - | |
cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:* |
Yes
|
- | - | |
cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:* |
Yes
|
- | - | |
cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:esm:*:*:* |
Yes
|
- | - | |
cpe:2.3:o:canonical:ubuntu_linux:20.04:*:*:*:lts:*:*:* |
Yes
|
- | - | |
cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:esm:*:*:* |
Yes
|
- | - | |
cpe:2.3:o:canonical:ubuntu_linux:12.04:*:*:*:-:*:*:* |
Yes
|
- | - | |
cpe:2.3:a:netapp:steelstore_cloud_integrated_storage:-:*:*:* |
Yes
|
- | - | |
cpe:2.3:o:opensuse:leap:15.1:*:*:*:*:*:*:* |
Yes
|
- | - | |
cpe:2.3:o:opensuse:leap:15.2:*:*:*:*:*:*:* |
Yes
|
- | - | |
cpe:2.3:a:synology:dns_server:*:*:*:*:*:*:*:* |
Yes
|
- | 2.2.2-5028 | |
cpe:2.3:a:oracle:communications_diameter_signaling_router:*: |
Yes
|
8.0.0 | - |
References
- https://kb.isc.org/docs/cve-2020-8622
- https://security.netapp.com/advisory/ntap-20200827-0003/
- https://usn.ubuntu.com/4468-1/
- https://usn.ubuntu.com/4468-2/
- https://www.debian.org/security/2020/dsa-4752
- https://lists.debian.org/debian-lts-announce/2020/08/msg00053.html
- https://www.synology.com/security/advisory/Synology_SA_20_19
- https://security.gentoo.org/glsa/202008-19
- http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00041.html
- http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00044.html
- https://www.oracle.com/security-alerts/cpuoct2021.html
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org