CVE-2018-21018
CRITICALCVSS 9.8/10EPSS 2.56%
Last modified
CVE-2018-21018 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. Mastodon before 2.6.3 mishandles timeouts of incompletely established sessions.. EPSS estimates a 2.56% chance of exploitation in the next 30 days.
Description
Mastodon before 2.6.3 mishandles timeouts of incompletely established sessions.
Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Joinmastodon | Mastodon | < 2.6.3 |
References
- https://github.com/tootsuite/mastodon/pull/9329Patch, Third Party Advisory
- https://github.com/tootsuite/mastodon/pull/9381Patch, Third Party Advisory
- https://github.com/tootsuite/mastodon/releases/tag/v2.6.2Release Notes, Third Party Advisory
- https://github.com/tootsuite/mastodon/releases/tag/v2.6.3Release Notes, Third Party Advisory
- https://github.com/tootsuite/mastodon/pull/9329Patch, Third Party Advisory
- https://github.com/tootsuite/mastodon/pull/9381Patch, Third Party Advisory
- https://github.com/tootsuite/mastodon/releases/tag/v2.6.2Release Notes, Third Party Advisory
- https://github.com/tootsuite/mastodon/releases/tag/v2.6.3Release Notes, Third Party Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is CVE-2018-21018?
Mastodon before 2.6.3 mishandles timeouts of incompletely established sessions.
How severe is CVE-2018-21018?
CVE-2018-21018 has a CVSS score of 9.8/10 (CRITICAL severity). The EPSS model estimates a 2.56% probability of exploitation in the next 30 days.
How do I fix CVE-2018-21018?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.
Are you affected by CVE-2018-21018?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST