Vulnerability Details : CVE-2019-20888
An issue was discovered in Mattermost Server before 5.7, 5.6.3, 5.5.2, and 4.10.5. It allows attackers to cause a denial of service (memory consumption) via an outgoing webhook or a slash command integration.
Vulnerability category: Denial of service
Products affected by CVE-2019-20888
- cpe:2.3:a:mattermost:mattermost_server:*:*:*:*:*:*:*:*
- cpe:2.3:a:mattermost:mattermost_server:*:*:*:*:*:*:*:*
- cpe:2.3:a:mattermost:mattermost_server:*:*:*:*:*:*:*:*
- cpe:2.3:a:mattermost:mattermost_server:5.7.0:rc1:*:*:*:*:*:*
- cpe:2.3:a:mattermost:mattermost_server:5.7.0:rc2:*:*:*:*:*:*
- cpe:2.3:a:mattermost:mattermost_server:5.7.0:rc3:*:*:*:*:*:*
- cpe:2.3:a:mattermost:mattermost_server:5.7.0:rc4:*:*:*:*:*:*
- cpe:2.3:a:mattermost:mattermost_server:5.7.0:rc5:*:*:*:*:*:*
- cpe:2.3:a:mattermost:mattermost_server:5.7.0:rc6:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2019-20888
0.39%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 57 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2019-20888
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
5.0
|
MEDIUM | AV:N/AC:L/Au:N/C:N/I:N/A:P |
10.0
|
2.9
|
NIST | |
|
7.5
|
HIGH | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
3.9
|
3.6
|
NIST |
CWE ids for CVE-2019-20888
-
The product does not sufficiently track and release allocated memory after it has been used, making the memory unavailable for reallocation and reuse.Assigned by: nvd@nist.gov (Primary)
References for CVE-2019-20888
-
https://mattermost.com/security-updates/
Security Updates - Mattermost - Open Source, On-Prem or Private Cloud MessagingVendor Advisory
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