Vulnerabilities > CVE-2023-36461 - Unspecified vulnerability in Joinmastodon Mastodon
Attack vector
NETWORK Attack complexity
LOW Privileges required
NONE Confidentiality impact
NONE Integrity impact
NONE Availability impact
HIGH Summary
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.
Vulnerable Configurations
References
- http://www.openwall.com/lists/oss-security/2023/07/06/7
- http://www.openwall.com/lists/oss-security/2023/07/06/7
- https://github.com/mastodon/mastodon/commit/c5929798bf7e56cc2c79b15bed0c4692ded3dcb6
- https://github.com/mastodon/mastodon/commit/c5929798bf7e56cc2c79b15bed0c4692ded3dcb6
- https://github.com/mastodon/mastodon/releases/tag/v3.5.9
- https://github.com/mastodon/mastodon/releases/tag/v3.5.9
- https://github.com/mastodon/mastodon/releases/tag/v4.0.5
- https://github.com/mastodon/mastodon/releases/tag/v4.0.5
- https://github.com/mastodon/mastodon/releases/tag/v4.1.3
- https://github.com/mastodon/mastodon/releases/tag/v4.1.3
- https://github.com/mastodon/mastodon/security/advisories/GHSA-9pxv-6qvf-pjwc
- https://github.com/mastodon/mastodon/security/advisories/GHSA-9pxv-6qvf-pjwc