UBUNTU-CVE-2017-7394

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Source
https://ubuntu.com/security/CVE-2017-7394
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2017/UBUNTU-CVE-2017-7394.json
JSON Data
https://api.osv.dev/v1/vulns/UBUNTU-CVE-2017-7394
Upstream
Withdrawn
2025-07-18T16:43:56Z
Published
2017-04-01T02:59:00Z
Modified
2025-07-16T07:37:08.954408Z
Severity
  • 7.5 (High) CVSS_V3 - CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
  • Ubuntu - medium
Summary
[none]
Details

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

References

Affected packages

Ubuntu:18.04:LTS / tigervnc

Package

Name
tigervnc
Purl
pkg:deb/ubuntu/tigervnc@1.7.0+dfsg-8ubuntu2?arch=source&distro=bionic

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
1.7.0+dfsg-8ubuntu2

Affected versions

1.*

1.7.0+dfsg-7ubuntu1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "tigervnc-common",
            "binary_version": "1.7.0+dfsg-8ubuntu2"
        },
        {
            "binary_name": "tigervnc-common-dbgsym",
            "binary_version": "1.7.0+dfsg-8ubuntu2"
        },
        {
            "binary_name": "tigervnc-scraping-server",
            "binary_version": "1.7.0+dfsg-8ubuntu2"
        },
        {
            "binary_name": "tigervnc-scraping-server-dbgsym",
            "binary_version": "1.7.0+dfsg-8ubuntu2"
        },
        {
            "binary_name": "tigervnc-standalone-server",
            "binary_version": "1.7.0+dfsg-8ubuntu2"
        },
        {
            "binary_name": "tigervnc-standalone-server-dbgsym",
            "binary_version": "1.7.0+dfsg-8ubuntu2"
        },
        {
            "binary_name": "tigervnc-viewer",
            "binary_version": "1.7.0+dfsg-8ubuntu2"
        },
        {
            "binary_name": "tigervnc-viewer-dbgsym",
            "binary_version": "1.7.0+dfsg-8ubuntu2"
        },
        {
            "binary_name": "tigervnc-xorg-extension",
            "binary_version": "1.7.0+dfsg-8ubuntu2"
        },
        {
            "binary_name": "tigervnc-xorg-extension-dbgsym",
            "binary_version": "1.7.0+dfsg-8ubuntu2"
        }
    ],
    "availability": "No subscription required"
}