5.3med
CVE-2017-18873
Mattermost Server is vulnerable to channel invisibility DoS via misformatted post
Also known as GHSA-x6mw-hf2j-vqpc, GO-2026-4282
Published 6 y ago · modified 4 mo ago · JSON
CVSS
5.3
v3.1 · NVD
CISA KEV
No
not known exploited
EPSS
1.1%
percentile 66%
Public exploits
0
none known
Summary
An issue was discovered in Mattermost Server before 4.3.0, 4.2.1, and 4.1.2. It allows attackers to cause a denial of service (channel invisibility) via a misformatted post.
Exploit prediction (EPSS)
1.11% probability of exploitation in the next 30 days, higher than 66% of all scored CVEs.
CVSS scores
| Assigned by | Version | Score | Vector |
|---|---|---|---|
| NVD | 3.1 | 5.3 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L |
| NVD | 2.0 | 5.0 | AV:N/AC:L/Au:N/C:N/I:N/A:P |
| GitHub | 3.1 | 5.3 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L |
Affected packages
| Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|
| go | github.com/mattermost/mattermost-server | <4.1.2-0.20171013141717-ee57a5829ab1 >=4.2.0, <4.2.1-0.20171013140502-b3e4b0ac9168 >=4.3.0-rc1, <4.3.0 <4.1.2-0.20171013141717-ee57a5829ab1+incompatible >=4.2.0+incompatible, <4.2.1-0.20171013140502-b3e4b0ac9168+incompatible >=4.3.0-rc1+incompatible, <4.3.0+incompatible | 4.1.2-0.20171013141717-ee57a5829ab1 4.2.1-0.20171013140502-b3e4b0ac9168 4.3.0 4.1.2-0.20171013141717-ee57a5829ab1+incompatible 4.2.1-0.20171013140502-b3e4b0ac9168+incompatible 4.3.0+incompatible |
Classification
- Weakness
- CWE-20 Improper Input Validation
References
- mattermost.com /security-updates/ · x_refsource_CONFIRM, x_transferred
- nvd.nist.gov /vuln/detail/CVE-2017-18873 · advisory
- github.com /mattermost/mattermost/commit/9adaf53e110e0e806b21903111aacb93129668cb · web
- github.com /mattermost/mattermost/commit/b3e4b0ac91682093276a653f7ccd5774aaa9cd06 · web
- github.com /mattermost/mattermost/commit/ee57a5829ab162859e0e355dac6cfe6ca1a8f379 · web
- github.com /mattermost/mattermost · package
- mattermost.com /security-updates · web
- github.com /advisories/GHSA-x6mw-hf2j-vqpc · advisory
Sources
- CVE List: CVE-2017-18873
- GitHub Advisory: GHSA-x6mw-hf2j-vqpc
- NVD: CVE-2017-18873
- OSV: GO-2026-4282
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