CVE-2023-3614: Denial of Service via specially crafted gif image
Mattermost fails to properly validate a gif image file, allowing an attacker to consume a significant amount of server resources, making the server unresponsive for an extended period of time by linking to specially crafted image file.
Affected Software
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Upgrade
Upgrade
Mattermostto a version that resolves this vulnerability.Fixed in v7.8.7 - Upgrade
Upgrade
Mattermostto a version that resolves this vulnerability.Fixed in v7.9.5 - Upgrade
Upgrade
Mattermostto a version that resolves this vulnerability.Fixed in v7.10.3
Event History
Frequently Asked Questions
What is CVE-2023-3614?
CVE-2023-3614 is a vulnerability in Mattermost that allows an attacker to consume a significant amount of server resources by linking to a specially crafted GIF image file.
What software versions are affected by CVE-2023-3614?
Mattermost Server versions up to 7.8.7, 7.9.0 to 7.9.5, and 7.10.0 to 7.10.3 are affected by CVE-2023-3614.
What is the severity of CVE-2023-3614?
CVE-2023-3614 has a severity rating of medium, with a severity value of 3.3.
How can an attacker exploit CVE-2023-3614?
An attacker can exploit CVE-2023-3614 by linking to a specially crafted GIF image file, causing the server to consume excessive resources and become unresponsive.
How do I fix CVE-2023-3614?
To fix CVE-2023-3614, users should upgrade their Mattermost Server to a version that is not affected by the vulnerability.