CVE-2018-21018

moderate-risk
Published 2019-09-22

Mastodon before 2.6.3 mishandles timeouts of incompletely established sessions.

Do I need to act?

~
1.6% chance of exploitation in next 30 days
EPSS score — moderate exploit probability
-
Not on CISA KEV list
No confirmed active exploitation reported to CISA
+
Fix available
Upgrade to: 404dc97fb013b7f835df65dfc22d07f68e482e23, a1216e631537b1fbf07f2c8724ac05e757800be6, a1216e631537b1fbf07f2c8724ac05e757800be6
9
CVSS 9.8/10 Critical
NETWORK / LOW complexity

Affected Products (1)

Affected Vendors

Joinmastodon

References (8)

Patch https://github.com/tootsuite/mastodon/pull/9329
Patch https://github.com/tootsuite/mastodon/pull/9381
Release Notes https://github.com/tootsuite/mastodon/releases/tag/v2.6.2
Release Notes https://github.com/tootsuite/mastodon/releases/tag/v2.6.3
Patch https://github.com/tootsuite/mastodon/pull/9329
Patch https://github.com/tootsuite/mastodon/pull/9381
Release Notes https://github.com/tootsuite/mastodon/releases/tag/v2.6.2
Release Notes https://github.com/tootsuite/mastodon/releases/tag/v2.6.3
41
/ 100
moderate-risk
Severity 32/34 · Critical
Exploitability 4/34 · Minimal
Exposure 5/34 · Minimal