CVE-2022-3257 — Uncontrolled Resource Consumption in Mattermost Mattermost-server V6

CWE-400 — Uncontrolled Resource ConsumptionCWE-434 — Unrestricted File Upload4 documents4 sources
Severity
6.5MEDIUMNVD
CNA3.1
EPSS
0.4%
top 39.06%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
3
Github.com Mattermost Mattermost-server V6Mattermost ServerMattermost
Timeline
PublishedSep 23
Latest updateSep 25

Description

Mattermost version 7.1.x and earlier fails to sufficiently process a specifically crafted GIF file when it is uploaded while drafting a post, which allows authenticated users to cause resource exhaustion while processing the file, resulting in server-side Denial of Service.

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:HExploitability: 2.8 | Impact: 3.6

Affected Packages3 packages

▶CVEListV5mattermost/mattermostunspecified — 7.1.x

🔴Vulnerability Details

3
GHSA
Mattermost subject to Denial of Service via upload of special GIF↗2022-09-25
▶
OSV
Mattermost subject to Denial of Service via upload of special GIF↗2022-09-25
▶
CVEList
Server-side Denial of Service while processing a specifically crafted GIF file↗2022-09-23
▶
CVE-2022-3257 — Uncontrolled Resource Consumption | cvebase