CVE-2023-5967: Github.com/mattermost/mattermost server/v6 Denial of Service Vulnerability
MODERATECVE-2023-5967 is a MODERATE (CVSS 4.3) denial of service vulnerability (CWE-754: Improper Check for Unusual or Exceptional Conditions) affecting Github.com/mattermost/mattermost server/v6 libraries in the Go ecosystem. The issue involves mattermost denial of service vulnerability. Remediation is available by upgrading affected packages to version 7.8.12, 8.0.4, 8.1.3, 9.0.1.
CVE-2023-5967 at a Glance
Security Impact
CVSS: 4.3
The security impact metrics below are parsed directly from the CVSS v3.1 vector string (CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L).
How to Fix CVE-2023-5967
To remediate this vulnerability, upgrade all affected Github.com/mattermost/mattermost server/v6 dependencies to a patched release. Both direct and transitive dependencies should be checked, as frameworks or security libraries may pull in vulnerable versions transitively.
Upgrade github.com/mattermost/mattermost-server/v6 to 7.8.12Upgrade github.com/mattermost/mattermost/server/v8 to 8.0.4Upgrade github.com/mattermost/mattermost/server/v8 to 8.1.3Upgrade github.com/mattermost/mattermost/server/v8 to 9.0.1Run the following command in your project directory to verify that all resolved dependencies use the patched release:
inspect dependencies for github.com/mattermost/mattermost-server/v6How to Check if You Are Affected
To determine whether your application is affected by CVE-2023-5967, inspect your project dependencies for Github.com/mattermost/mattermost server/v6:
inspect dependencies for github.com/mattermost/mattermost-server/v6Analyze the terminal output to locate any version of Github.com/mattermost/mattermost server/v6 in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 7.8.12), your application is affected.
Note: Verify declared build manifests and deployed runtime container environments.
Technical Details
Vulnerability Mechanism & Technical Analysis
This vulnerability is classified under CWE-754: Improper Check for Unusual or Exceptional Conditions, where the product does not check or incorrectly checks for unusual or exceptional conditions that are not expected to occur frequently during day to day operation of the product. In Github.com/mattermost/mattermost server/v6, software state validation or input boundaries are circumvented during processing. Review the official source advisory statement below for specific affected components, classes, and reproduction details.
Source Advisory Statement
CVE-2023-5967 Affected Github.com/mattermost/mattermost server/v6 Versions
4 component(s)| Product / Package | Ecosystem | Affected Versions | Fixed Version |
|---|---|---|---|
|
github.com/mattermost/mattermost-server/v6
|
Go |
< 7.8.12
|
7.8.12
|
|
github.com/mattermost/mattermost/server/v8
|
Go |
≥ 8.0.0
< 8.0.4
|
8.0.4
|
|
github.com/mattermost/mattermost/server/v8
|
Go |
≥ 8.1.0
< 8.1.3
|
8.1.3
|
|
github.com/mattermost/mattermost/server/v8
|
Go |
≥ 9.0.0
< 9.0.1
All 1 versions
9.0.0
|
9.0.1
|
References
Frequently Asked Questions
What is CVE-2023-5967?
Which Github.com/mattermost/mattermost server/v6 versions are affected?
What version fixes CVE-2023-5967?
Is github.com/mattermost/mattermost-server/v6 affected?
Is github.com/mattermost/mattermost/server/v8 affected?
What is the CVSS score of CVE-2023-5967?
What CWE is associated with CVE-2023-5967?
How can I check Go dependencies for CVE-2023-5967?
Machine-readable OSV JSON
OSV v1.5 Schema
{
"schema_version" : "1.4.0",
"id" : "GHSA-xvq6-h898-wcj8",
"modified" : "2023-11-08T14:53:27Z",
"published" : "2023-11-06T18:30:19Z",
"aliases" : [ "CVE-2023-5967" ],
"summary" : "Mattermost denial of service vulnerability",
"details" : "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\n\n",
"severity" : [ {
"type" : "CVSS_V3",
"score" : "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L"
} ],
"affected" : [ {
"package" : {
"ecosystem" : "Go",
"name" : "github.com/mattermost/mattermost-server/v6"
},
"ranges" : [ {
"type" : "ECOSYSTEM",
"events" : [ {
"introduced" : "0"
}, {
"fixed" : "7.8.12"
} ]
} ]
}, {
"package" : {
"ecosystem" : "Go",
"name" : "github.com/mattermost/mattermost/server/v8"
},
"ranges" : [ {
"type" : "ECOSYSTEM",
"events" : [ {
"introduced" : "8.0.0"
}, {
"fixed" : "8.0.4"
} ]
} ]
}, {
"package" : {
"ecosystem" : "Go",
"name" : "github.com/mattermost/mattermost/server/v8"
},
"ranges" : [ {
"type" : "ECOSYSTEM",
"events" : [ {
"introduced" : "8.1.0"
}, {
"fixed" : "8.1.3"
} ]
} ]
}, {
"package" : {
"ecosystem" : "Go",
"name" : "github.com/mattermost/mattermost/server/v8"
},
"ranges" : [ {
"type" : "ECOSYSTEM",
"events" : [ {
"introduced" : "9.0.0"
}, {
"fixed" : "9.0.1"
} ]
} ],
"versions" : [ "9.0.0" ]
} ],
"references" : [ {
"type" : "ADVISORY",
"url" : "https://nvd.nist.gov/vuln/detail/CVE-2023-5967"
}, {
"type" : "PACKAGE",
"url" : "https://github.com/mattermost/mattermost"
}, {
"type" : "WEB",
"url" : "https://mattermost.com/security-updates"
} ],
"database_specific" : {
"cwe_ids" : [ "CWE-754" ],
"severity" : "MODERATE",
"github_reviewed" : true,
"github_reviewed_at" : "2023-11-08T14:53:27Z",
"nvd_published_at" : "2023-11-06T16:15:42Z"
}
}