CVE-2017-2625

libXdmcp: weak entropy usage for session keys

Published Jul 27, 2018 CVSS 3.0 · 6.5 Medium EPSS < 1% KEV · Not listed
Description
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.

Analysis

No analysis available yet

Remediation

No remediation available yet

Tracking

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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
History
Type Values Removed Values Added
Metrics epss

{'score': 0.00045}

epss

{'score': 0.00034}

Weaknesses

Sources

Status
PUBLISHED
Assigner
redhat
Published
Updated
Aug 5, 2024, 2:02 PM
Reserved
Dec 1, 2016, 12:00 AM
Status
Modified
Published
Jul 27, 2018, 6:29 PM
Modified
Jun 17, 2026, 1:16 AM
Severity
Moderate
Public date
Feb 28, 2017, 12:00 AM