Mastodon up to 3.5.8/4.0.4/4.1.2 HTTP Query allocation of resources

Summaryinfo

A vulnerability was found in Mastodon up to 3.5.8/4.0.4/4.1.2. It has been declared as critical. Impacted is an unknown function of the component HTTP Query Handler. Executing a manipulation can lead to allocation of resources. This vulnerability is registered as CVE-2023-36461. It is possible to launch the attack remotely. No exploit is available. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability was found in Mastodon up to 3.5.8/4.0.4/4.1.2. It has been declared as critical. This vulnerability affects some unknown processing of the component HTTP Query Handler. The manipulation with an unknown input leads to a allocation of resources vulnerability. The CWE definition for the vulnerability is CWE-770. The product allocates a reusable resource or group of resources on behalf of an actor without imposing any restrictions on the size or number of resources that can be allocated, in violation of the intended security policy for that actor. As an impact it is known to affect availability. CVE summarizes:

Mastodon is a free, open-source social network server based on ActivityPub. When performing outgoing HTTP queries, Mastodon sets a timeout on individual read operations. Prior to versions 3.5.9, 4.0.5, and 4.1.3, a malicious server can indefinitely extend the duration of the response through slowloris-type attacks. This vulnerability can be used to keep all Mastodon workers busy for an extended duration of time, leading to the server becoming unresponsive. Versions 3.5.9, 4.0.5, and 4.1.3 contain a patch for this issue.

The weakness was published 07/06/2023 as GHSA-9pxv-6qvf-pjwc. The advisory is shared for download at github.com. This vulnerability was named CVE-2023-36461 since 06/21/2023. There are neither technical details nor an exploit publicly available. The MITRE ATT&CK project declares the attack technique as T1499.

Upgrading to version 3.5.9, 4.0.5 or 4.1.3 eliminates this vulnerability. The upgrade is hosted for download at github.com. Applying the patch c5929798bf7e56cc2c79b15bed0c4692ded3dcb6 is able to eliminate this problem. The bugfix is ready for download at github.com. The best possible mitigation is suggested to be upgrading to the latest version.

Once again VulDB remains the best source for vulnerability data.

Productinfo

Name

• Mastodon

Version

• 3.5.0
• 3.5.1
• 3.5.2
• 3.5.3
• 3.5.4
• 3.5.5
• 3.5.6
• 3.5.7
• 3.5.8
• 4.0.0
• 4.0.1
• 4.0.2
• 4.0.3
• 4.0.4
• 4.1.0
• 4.1.1
• 4.1.2

License

• open-source

Website

• Product: https://github.com/mastodon/mastodon/

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CPE 2.2info

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