CVE-2021-37865

EUVD-2021-24343
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.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTPrimary
4.3 MEDIUM
NETWORK
LOW
LOW
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L
MattermostCNA
4.3 MEDIUM
NETWORK
LOW
LOW
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L
Base Score
CVSS 3.x
EPSS Score
Percentile: 69%
Affected Products (NVD)
VendorProductVersion
mattermostmattermost
𝑥
≤ 6.2.0
𝑥
= Vulnerable software versions
Common Weakness Enumeration
References
https://hackerone.com/reports/1428260
https://mattermost.com/security-updates/
https://hackerone.com/reports/1428260
https://mattermost.com/security-updates/