PT-2023-21643 · Unknown · Mattermost

Claverrat · Published 2023-06-16 · Updated 2023-06-26 · CVE-2023-2831

Positive Technologies (AI Summary)

CVSS v3.1

6.5

Medium

Base vector

AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Name of the Vulnerable Software and Affected Versions Mattermost (affected versions not specified)

Description The issue allows an attacker to cause a Denial of Service by sending a message containing a large number of escaped characters, due to Mattermost's failure to unescape Markdown strings in a memory-efficient way.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Resource Exhaustion

Weakness Enumeration

CWE-400

Related Identifiers

CVE-2023-2831

Affected Products

Mattermost

References · 5

• https://osv.dev/vulnerability/CVE-2023-2831 · Vendor Advisory
• https://mattermost.com/security-updates · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2023-2831 · Security Note
• https://t.me/cvenotify/52491 · Telegram Post
• https://t.me/cvenotify/52483 · Telegram Post