CVE-2017-7394

HIGH

TigerVNC 1.7.1 - Unauthenticated Denial of Service via Long Username

Title source: llm
STIX 2.1

Description

In TigerVNC 1.7.1 (SSecurityPlain.cxx SSecurityPlain::processMsg), unauthenticated users can crash the server by sending long usernames.

References (4)

Core 4
Core References
Vendor Advisory vendor-advisory x_refsource_redhat
https://access.redhat.com/errata/RHSA-2017:2000
Issue Tracking, Patch, Third Party Advisory x_refsource_confirm
https://github.com/TigerVNC/tigervnc/pull/440
Third Party Advisory, VDB Entry vdb-entry x_refsource_bid
http://www.securityfocus.com/bid/97305
Third Party Advisory vendor-advisory x_refsource_gentoo
https://security.gentoo.org/glsa/201801-13

Scores

CVSS v3 7.5
EPSS 0.0161
EPSS Percentile 73.0%
Attack Vector NETWORK
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Details

CWE
CWE-20
Status published
Products (1)
tigervnc/tigervnc 1.7.1
Published Apr 01, 2017
Tracked Since Feb 18, 2026