ISC BIND up to 9.11.27/9.16.11/9.17.1 GSS-TSIG denial of service
| CVSS Meta Temp Score | Current Exploit Price (≈) | CTI Interest Score |
|---|---|---|
| 7.7 | $0-$5k | 0.00 |
Summary
A vulnerability classified as critical has been found in ISC BIND up to 9.11.27/9.16.11/9.17.1. Affected by this issue is some unknown functionality of the component GSS-TSIG. Performing a manipulation results in denial of service. This vulnerability is reported as CVE-2020-8625. The attack is possible to be carried out remotely. No exploit exists. It is recommended to upgrade the affected component.
Details
A vulnerability classified as critical has been found in ISC BIND up to 9.11.27/9.16.11/9.17.1 (Domain Name Software). This affects some unknown processing of the component GSS-TSIG. The manipulation with an unknown input leads to a denial of service vulnerability. CWE is classifying the issue as CWE-404. The product does not release or incorrectly releases a resource before it is made available for re-use. This is going to have an impact on confidentiality, integrity, and availability.
The weakness was disclosed 02/18/2021. It is possible to read the advisory at kb.isc.org. This vulnerability is uniquely identified as CVE-2020-8625. The technical details are unknown and an exploit is not publicly available. The attack technique deployed by this issue is T1499 according to MITRE ATT&CK.
The vulnerability scanner Nessus provides a plugin with the ID 236577 (Alibaba Cloud Linux 3 : 0025: bind (ALINUX3-SA-2021:0025)), which helps to determine the existence of the flaw in a target environment.
Upgrading to version 9.11.28 or 9.16.12 eliminates this vulnerability. The upgrade is hosted for download at kb.isc.org.
The vulnerability is also documented in the vulnerability database at Tenable (236577). Be aware that VulDB is the high quality source for vulnerability data.
Product
Type
Vendor
Name
Version
- 9.11.0
- 9.11.1
- 9.11.2
- 9.11.3
- 9.11.4
- 9.11.5
- 9.11.6
- 9.11.7
- 9.11.8
- 9.11.9
- 9.11.10
- 9.11.11
- 9.11.12
- 9.11.13
- 9.11.14
- 9.11.15
- 9.11.16
- 9.11.17
- 9.11.18
- 9.11.19
- 9.11.20
- 9.11.21
- 9.11.22
- 9.11.23
- 9.11.24
- 9.11.25
- 9.11.26
- 9.11.27
- 9.16.0
- 9.16.1
- 9.16.2
- 9.16.3
- 9.16.4
- 9.16.5
- 9.16.6
- 9.16.7
- 9.16.8
- 9.16.9
- 9.16.10
- 9.16.11
- 9.17.0
- 9.17.1
License
Website
- Vendor: https://www.isc.org/
CPE 2.3
CPE 2.2
CVSSv4
VulDB Vector: 🔍VulDB Reliability: 🔍
CVSSv3
VulDB Meta Base Score: 8.1VulDB Meta Temp Score: 7.7
VulDB Base Score: 8.1
VulDB Temp Score: 7.7
VulDB Vector: 🔍
VulDB Reliability: 🔍
CVSSv2
| AV | AC | Au | C | I | A |
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| 💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
| 💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
| 💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
| Vector | Complexity | Authentication | Confidentiality | Integrity | Availability |
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| Unlock | Unlock | Unlock | Unlock | Unlock | Unlock |
| Unlock | Unlock | Unlock | Unlock | Unlock | Unlock |
| Unlock | Unlock | Unlock | Unlock | Unlock | Unlock |
VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍
NVD Base Score: 🔍
Exploiting
Class: Denial of serviceCWE: CWE-404
CAPEC: 🔍
ATT&CK: 🔍
Physical: No
Local: No
Remote: Yes
Availability: 🔍
Status: Not defined
EPSS Score: 🔍
EPSS Percentile: 🔍
Price Prediction: 🔍
Current Price Estimation: 🔍
| 0-Day | Unlock | Unlock | Unlock | Unlock |
|---|---|---|---|---|
| Today | Unlock | Unlock | Unlock | Unlock |
Nessus ID: 236577
Nessus Name: Alibaba Cloud Linux 3 : 0025: bind (ALINUX3-SA-2021:0025)
Threat Intelligence
Interest: 🔍Active Actors: 🔍
Active APT Groups: 🔍
Countermeasures
Recommended: UpgradeStatus: 🔍
0-Day Time: 🔍
Upgrade: BIND 9.11.28/9.16.12
Timeline
02/05/2020 🔍02/18/2021 🔍
02/18/2021 🔍
05/21/2025 🔍
Sources
Vendor: isc.orgAdvisory: kb.isc.org
Status: Confirmed
Confirmation: 🔍
CVE: CVE-2020-8625 (🔍)
GCVE (CVE): GCVE-0-2020-8625
GCVE (VulDB): GCVE-100-170127
Entry
Created: 02/18/2021 07:39Updated: 05/21/2025 19:30
Changes: 02/18/2021 07:39 (40), 03/03/2021 09:26 (3), 03/03/2021 09:28 (8), 05/21/2025 19:30 (20)
Complete: 🔍
Cache ID: 216::103
Be aware that VulDB is the high quality source for vulnerability data.
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