Vulnerability Details : CVE-2021-37865
Mattermost 6.2 and earlier fails to sufficiently process a specifically crafted GIF file when it is uploaded while drafting a post, which allows authenticated users to cause resource exhaustion while processing the file, resulting in server-side Denial of Service.
Vulnerability category: Denial of service
Products affected by CVE-2021-37865
- cpe:2.3:a:mattermost:mattermost:*:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2021-37865
0.08%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 34 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2021-37865
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
3.5
|
LOW | AV:N/AC:M/Au:S/C:N/I:N/A:P |
6.8
|
2.9
|
NIST | |
|
5.7
|
MEDIUM | CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:N/A:H |
2.1
|
3.6
|
NIST | |
|
4.3
|
MEDIUM | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L |
2.8
|
1.4
|
Mattermost, Inc. |
CWE ids for CVE-2021-37865
-
The product does not properly control the allocation and maintenance of a limited resource, thereby enabling an actor to influence the amount of resources consumed, eventually leading to the exhaustion of available resources.Assigned by:
- nvd@nist.gov (Primary)
- responsibledisclosure@mattermost.com (Secondary)
References for CVE-2021-37865
-
https://hackerone.com/reports/1428260
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https://mattermost.com/security-updates/
Security Updates - Mattermost - Open Source, On-Prem or Private Cloud MessagingVendor Advisory
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