It was discovered that libXdmcp before 1.1.2 including used weak entropy to generate session keys. On a multi-user system using xdmcp, a local attacker could potentially use information available from the process list to brute force the key, allowing them to hijack other users' sessions.
Advisories
Source ID Title
Debian DLA Debian DLA DLA-2006-1 libxdmcp security update
EUVD EUVD EUVD-2017-11786 It was discovered that libXdmcp before 1.1.2 including used weak entropy to generate session keys. On a multi-user system using xdmcp, a local attacker could potentially use information available from the process list to brute force the key, allowing them to hijack other users' sessions.
Ubuntu USN Ubuntu USN USN-5690-1 libXdmcp vulnerability
Fixes

Solution

No solution given by the vendor.


Workaround

No workaround given by the vendor.

History

Sun, 13 Jul 2025 13:45:00 +0000

Type Values Removed Values Added
Metrics epss

{'score': 0.00045}

epss

{'score': 0.00034}


cve-icon MITRE

Status: PUBLISHED

Assigner: redhat

Published:

Updated: 2024-08-05T14:02:06.921Z

Reserved: 2016-12-01T00:00:00

Link: CVE-2017-2625

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Modified

Published: 2018-07-27T18:29:00.860

Modified: 2024-11-21T03:23:51.520

Link: CVE-2017-2625

cve-icon Redhat

Severity : Moderate

Publid Date: 2017-02-28T00:00:00Z

Links: CVE-2017-2625 - Bugzilla

cve-icon OpenCVE Enrichment

No data.