CVE-2017-18883
First published: Fri Jun 19 2020(Updated: )
An issue was discovered in Mattermost Server before 4.3.0, 4.2.1, and 4.1.2, when serving as an OAuth 2.0 Service Provider. There is low entropy for authorization data.
Credit: cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Mattermost | <4.1.2 | |
| Mattermost | >=4.2.0<4.2.1 | |
| Mattermost | =4.3.0-rc1 | |
| Mattermost | =4.3.0-rc2 | |
| Mattermost | =4.3.0-rc3 | |
| Mattermost | =4.3.0-rc4 |
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Reference Links
Frequently Asked Questions
What is the severity of CVE-2017-18883?
CVE-2017-18883 is classified as a low severity vulnerability.
How do I fix CVE-2017-18883?
To fix CVE-2017-18883, update Mattermost Server to version 4.3.0 or later or apply the relevant security patches.
What versions are affected by CVE-2017-18883?
CVE-2017-18883 affects Mattermost Server versions prior to 4.3.0, 4.2.1, and 4.1.2.
What type of issue does CVE-2017-18883 represent?
CVE-2017-18883 represents an issue with low entropy for authorization data in OAuth 2.0 service provider configuration.
Is CVE-2017-18883 specific to any deployment of Mattermost Server?
Yes, CVE-2017-18883 specifically affects Mattermost Server when configured as an OAuth 2.0 service provider.
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- vendor/mattermost
- canonical/mattermost
- version/mattermost/4.2.0
- version/mattermost/4.3.0-rc1
- version/mattermost/4.3.0-rc2
- version/mattermost/4.3.0-rc3
- version/mattermost/4.3.0-rc4