CVE-2023-2831
First published: Fri Jun 16 2023(Updated: )
Mattermost fails to unescape Markdown strings in a memory-efficient way, allowing an attacker to cause a Denial of Service by sending a message containing a large number of escaped characters.
Credit: responsibledisclosure@mattermost.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Mattermost Mattermost | >=7.1.0<=7.1.9 | |
| Mattermost Mattermost | >=7.8.0<=7.8.4 | |
| Mattermost Mattermost | >=7.9.0<=7.9.3 | |
| Mattermost Mattermost | =7.10.0 |
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Reference Links
Frequently Asked Questions
What is CVE-2023-2831?
CVE-2023-2831 is a vulnerability in Mattermost that allows an attacker to cause a Denial of Service by sending a message containing a large number of escaped characters.
How does Mattermost fail to unescape Markdown strings?
Mattermost fails to unescape Markdown strings in a memory-efficient way.
What is the severity of CVE-2023-2831?
The severity of CVE-2023-2831 is medium, with a severity value of 6.5.
Which versions of Mattermost are affected by CVE-2023-2831?
Mattermost versions 7.1.0 to 7.1.9, 7.8.0 to 7.8.4, 7.9.0 to 7.9.3, and 7.10.0 are affected by CVE-2023-2831.
How can I fix CVE-2023-2831?
To fix CVE-2023-2831, update Mattermost to a version that is not affected by the vulnerability. Refer to the Mattermost security updates page for more information.
- collector/nvd-index
- agent/severity
- agent/references
- agent/weakness
- agent/author
- agent/type
- agent/description
- agent/tags
- agent/event
- agent/last-modified-date
- vendor/mattermost
- canonical/mattermost mattermost
- version/mattermost mattermost/7.1.0
- version/mattermost mattermost/7.1.9
- version/mattermost mattermost/7.8.0
- version/mattermost mattermost/7.8.4
- version/mattermost mattermost/7.9.0
- version/mattermost mattermost/7.9.3
- version/mattermost mattermost/7.10.0