Vulnerability · Published Nov 6, 2023 · Assigned by Mattermost
CVE-2023-5967Denial of Service via crashing the Calls Plugin
Medium 4.3
In plain English
A medium-severity security flaw in Mattermost from Mattermost. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.5% (higher than 44% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS 3.1)4.3Medium
Exploit odds (30 days)0.5%top 56.4% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
Mattermost fails to properly validate requests to the Calls plugin, allowing an attacker sending a request without a User Agent header to cause a panic and crash the Calls plugin
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Go | github.com/mattermost/mattermost-server/v6 | 7.8.12 | GHSA-xvq6-h898-wcj8 |
| Go | github.com/mattermost/mattermost/server/v8 | 8.0.4 | GHSA-xvq6-h898-wcj8 |
| Go | github.com/mattermost/mattermost/server/v8 | 8.1.3 | GHSA-xvq6-h898-wcj8 |
| Go | github.com/mattermost/mattermost/server/v8 | 9.0.1 | GHSA-xvq6-h898-wcj8 |
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Mattermost | Mattermost | 0 – through 8.1.20 – through 8.0.30 – through 7.8.11 |
Weakness: CWE-754 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L