CVE-2023-36460

critical

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.

References

https://github.com/mastodon/mastodon/security/advisories/GHSA-9928-3cp5-93fm

https://github.com/mastodon/mastodon/releases/tag/v4.1.3

https://github.com/mastodon/mastodon/releases/tag/v4.0.5

https://github.com/mastodon/mastodon/releases/tag/v3.5.9

https://github.com/mastodon/mastodon/commit/dc8f1fbd976ae544720a4e07120d9a91b2722440

http://www.openwall.com/lists/oss-security/2023/07/06/4

Details

Source: Mitre, NVD

Published: 2023-07-06

Updated: 2023-07-14

Risk Information

CVSS v2

Base Score: 9

Vector: CVSS2#AV:N/AC:L/Au:S/C:C/I:C/A:C

Severity: High

CVSS v3

Base Score: 9.9

Vector: CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

Severity: Critical