CVE-2018-21250
First published: Fri Jun 19 2020(Updated: )
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.
Credit: cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Mattermost | <4.10.4 | |
| Mattermost | >=5.1.0<5.1.2 | |
| Mattermost | >=5.2.0<5.2.2 |
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Reference Links
Frequently Asked Questions
What is the severity of CVE-2018-21250?
CVE-2018-21250 has a high severity rating due to its potential to cause denial of service.
How do I fix CVE-2018-21250?
To fix CVE-2018-21250, upgrade Mattermost Server to version 5.2.2 or later, 5.1.2, or 4.10.4.
Which versions of Mattermost Server are affected by CVE-2018-21250?
CVE-2018-21250 affects Mattermost Server versions before 5.2.2, 5.1.2, and 4.10.4.
What type of attack does CVE-2018-21250 describe?
CVE-2018-21250 describes a remote denial of service attack due to memory consumption caused by crafted image dimensions.
Can CVE-2018-21250 be exploited remotely?
Yes, CVE-2018-21250 can be exploited remotely by attackers sending specially crafted images.
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