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.

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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}


Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: redhat

Published:

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

Reserved: 2016-12-01T00:00:00.000Z

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.

Weaknesses