Vulnerability Description
Mastodon is a free, open-source social network server based on ActivityPub. Starting in version 3.5.0 and prior to versions 3.5.9, 4.0.5, and 4.1.3, attackers using carefully crafted media files can cause Mastodon's media processing code to create arbitrary files at any location. This allows attackers to create and overwrite any file Mastodon has access to, allowing Denial of Service and arbitrary Remote Code Execution. Versions 3.5.9, 4.0.5, and 4.1.3 contain a patch for this issue.
CVSS Score
CRITICAL
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Joinmastodon | Mastodon | >= 3.5.0, < 3.5.9 |
Related Weaknesses (CWE)
References
- http://www.openwall.com/lists/oss-security/2023/07/06/4Mailing List
- https://github.com/mastodon/mastodon/commit/dc8f1fbd976ae544720a4e07120d9a91b272PatchThird Party Advisory
- https://github.com/mastodon/mastodon/releases/tag/v3.5.9Third Party Advisory
- https://github.com/mastodon/mastodon/releases/tag/v4.0.5Third Party Advisory
- https://github.com/mastodon/mastodon/releases/tag/v4.1.3Third Party Advisory
- https://github.com/mastodon/mastodon/security/advisories/GHSA-9928-3cp5-93fmThird Party Advisory
- http://www.openwall.com/lists/oss-security/2023/07/06/4Mailing List
- https://github.com/mastodon/mastodon/commit/dc8f1fbd976ae544720a4e07120d9a91b272PatchThird Party Advisory
- https://github.com/mastodon/mastodon/releases/tag/v3.5.9Third Party Advisory
- https://github.com/mastodon/mastodon/releases/tag/v4.0.5Third Party Advisory
- https://github.com/mastodon/mastodon/releases/tag/v4.1.3Third Party Advisory
- https://github.com/mastodon/mastodon/security/advisories/GHSA-9928-3cp5-93fmThird Party Advisory
FAQ
What is CVE-2023-36460?
CVE-2023-36460 is a vulnerability with a CVSS score of 9.9 (CRITICAL). Mastodon is a free, open-source social network server based on ActivityPub. Starting in version 3.5.0 and prior to versions 3.5.9, 4.0.5, and 4.1.3, attackers using carefully crafted media files can c...
How severe is CVE-2023-36460?
CVE-2023-36460 has been rated CRITICAL with a CVSS base score of 9.9/10. This is considered a critical vulnerability requiring immediate attention.
Is there a patch for CVE-2023-36460?
Check the references section above for vendor advisories and patch information. Affected products include: Joinmastodon Mastodon.