CVE-2023-36461

· HIGHModified

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CVSS v3.1

7.5

EPSS

1.31%

Published

Jul 6, 2023

Modified

Nov 21, 2024

Public PoC / Exploit (1)

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Links to public security research (Exploit-DB, Nuclei, Trickest, GitHub) for defensive use only.

Description

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.

CVSS Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Weaknesses (CWE)

CWE-770

Affected Products (3)

joinmastodon · mastodon (up to 3.5.9)vulnerable

joinmastodon · mastodon (up to 4.0.5)vulnerable

joinmastodon · mastodon (up to 4.1.3)vulnerable

References (12)

http://www.openwall.com/lists/oss-security/2023/07/06/7

Mailing List

https://github.com/mastodon/mastodon/commit/c5929798bf7e56cc2c79b15bed0c4692ded3dcb6