CVE-2023-36461
What it is
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.
At a glance
- Exploitability
- Can be exploited over the network without logging in. High risk of service disruption.
- Exploit odds
- 1.3% chance of exploitation in the next 30 days (EPSS).
- Fix
- A patch, advisory or fixed version is referenced. Upgrade or apply it.
Timeline
- PublishedDisclosed publicly on CVE.org and NVD
- Last updatedMost recent change to the record
Why it ranks here
- Exploited in the wild: no, CISA does not list it.
- Exploit odds: 1.3% in the next 30 days (EPSS).
- Severity: 7.5 HIGH (CVSS).
- Fix: a patch or advisory is linked.
Details
- Published
- Last modified
- Exploit probability
- 1.3% · EPSS, next 30 days
- Weakness
- CWE-770 · Allocation without limits
- Record status
- Modified
Affected
- Joinmastodon Mastodon < 3.5.9
- Joinmastodon Mastodon < 4.0.5
- Joinmastodon Mastodon < 4.1.3
Attack profile CVSS 3.1 · 7.5
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- None
- Integrity
- None
- Availability
- High
Raw vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Is it in your code?
Hand this to your coding agent. It searches your project for the affected products and checks versions. Nothing leaves your machine.
Read https://cve-list.com/agent/cve/CVE-2023-36461.md and follow it. Check whether this project is affected by CVE-2023-36461. Read only. Don't change anything and don't upload my code. Tell me yes, no or not sure, with the file as proof.
Fix and advisories
- https://github.com/mastodon/mastodon/commit/c5929798bf7e56cc2c79b15bed0c4692ded3dcb6
- 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/v4.1.3
- https://github.com/mastodon/mastodon/security/advisories/GHSA-9pxv-6qvf-pjwc
- https://github.com/mastodon/mastodon/commit/c5929798bf7e56cc2c79b15bed0c4692ded3dcb6
- 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/v4.1.3
- https://github.com/mastodon/mastodon/security/advisories/GHSA-9pxv-6qvf-pjwc
References
- http://www.openwall.com/lists/oss-security/2023/07/06/7
- https://github.com/mastodon/mastodon/commit/c5929798bf7e56cc2c79b15bed0c4692ded3dcb6
- 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/v4.1.3
- https://github.com/mastodon/mastodon/security/advisories/GHSA-9pxv-6qvf-pjwc
- http://www.openwall.com/lists/oss-security/2023/07/06/7
- https://github.com/mastodon/mastodon/commit/c5929798bf7e56cc2c79b15bed0c4692ded3dcb6
- 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/v4.1.3
- https://github.com/mastodon/mastodon/security/advisories/GHSA-9pxv-6qvf-pjwc