Mastodon vulnerable to Denial of Service through slow HTTP responses
CVE-2023-36461

7.5HIGH

Key Information:

Vendor

Mastodon

Status
Mastodon
Vendor
CVE Published:
6 July 2023

What is CVE-2023-36461?

Mastodon, an open-source social networking server, is susceptible to a vulnerability that allows a malicious server to extend the response time of outgoing HTTP queries indefinitely. Before the release of versions 3.5.9, 4.0.5, and 4.1.3, attackers could exploit this vulnerability using slowloris-type techniques, keeping all Mastodon workers occupied for extended periods. This behavior could lead to server unresponsiveness, significantly affecting platform performance. Users are encouraged to update to the latest versions to mitigate this risk.

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Affected Version(s)

mastodon < 3.5.9 < 3.5.9

mastodon >= 4.0.0, < 4.0.5 < 4.0.0, 4.0.5

mastodon >= 4.1.0, < 4.1.3 < 4.1.0, 4.1.3

References

https://github.com/mastodon/mastodon/security/advisories/...
x_refsource_CONFIRM
https://github.com/mastodon/mastodon/commit/c5929798bf7e5...
x_refsource_MISC
https://github.com/mastodon/mastodon/releases/tag/v3.5.9
x_refsource_MISC

CVSS V3.1

Score:
7.5
Severity:
HIGH
Confidentiality:
None
Integrity:
None
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

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