CVE-2023-40703 — Uncontrolled Resource Consumption in Mattermost Mattermost-server V6

CWE-400 — Uncontrolled Resource Consumption4 documents4 sources
Severity
7.5HIGHNVD
CNA4.3
EPSS
0.1%
top 74.32%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
3
Github.com Mattermost Mattermost-server V6Github.com Mattermost Mattermost Server V8Mattermost
Timeline
PublishedNov 27

Description

Mattermost fails to properly limit the characters allowed in different fields of a block in Mattermost Boards allowing a attacker to consume excessive resources, possibly leading to Denial of Service, by patching the field of a block using a specially crafted string.

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:HExploitability: 3.9 | Impact: 3.6

Affected Packages4 packages

▶CVEListV5mattermost/mattermost7.8.12+3
▶NVDmattermost/mattermost8.0.0 — 8.1.3+3

🔴Vulnerability Details

3
CVEList
Denial of Service via specially crafted block fields in Mattermost Boards↗2023-11-27
▶
GHSA
Mattermost Uncontrolled Resource Consumption vulnerability↗2023-11-27
▶
OSV
Mattermost Uncontrolled Resource Consumption vulnerability↗2023-11-27
▶
CVE-2023-40703 — Uncontrolled Resource Consumption | cvebase