Medium severity · published Jun 19, 2020
CVE-2018-21250
An issue was discovered in Mattermost Server before 5.2.2, 5.1.2, and 4.10.4
6.5
CVSS
1.1%
EPSS
No
On KEV
Description
An issue was discovered in Mattermost Server before 5.2.2, 5.1.2, and 4.10.4. It allows remote attackers to cause a denial of service (memory consumption) via crafted image dimensions.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
Required
Confidentiality
None
Integrity
None
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)1.1% · higher than 65% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
MS
Mattermost Server · Mattermost
before 4.10.4; 5.1.0 before 5.1.2; 5.2.0 before 5.2.2 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2018-21250
CVE.org
https://www.cve.org/CVERecord?id=CVE-2018-21250
Vendor Advisory
https://mattermost.com/security-updates/
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