Description
Mastodon is a free, open-source social network server based on ActivityPub. Prior to 4.5.11, 4.4.18, and 4.3.24, a DoS can be triggered by (Uncaught Exception vulerability), due to missing exception handling in the math sanitizer. Malformed <math> nodes can result in a DoS of a whole server or targeted users services, depending on the type of action that includes the malformed nodes and the services interacting with it. This vulnerability is fixed in 4.5.11, 4.4.18, and 4.3.24.
CVSS breakdown
CVSS 3.1
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High
Affected products
- mastodon / mastodon>= 4.5.0-beta.1, < 4.5.11 – >= 4.5.0-beta.1, < 4.5.11
- mastodon / mastodon>= 4.4.0-beta.1, < 4.4.18 – >= 4.4.0-beta.1, < 4.4.18
- mastodon / mastodon< 4.3.24 – < 4.3.24