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FreeBSD: VID-1B6A10E9-4B7B-11E9-9E89-54E1AD3D6335 (CVE-2017-2625): libXdmcp -- insufficient entropy generating session keys

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FreeBSD: VID-1B6A10E9-4B7B-11E9-9E89-54E1AD3D6335 (CVE-2017-2625): libXdmcp -- insufficient entropy generating session keys

Severity
2
CVSS
(AV:L/AC:L/Au:N/C:P/I:N/A:N)
Published
04/04/2017
Created
04/22/2019
Added
04/01/2019
Modified
05/07/2019

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.

Solution(s)

  • freebsd-upgrade-package-libxdmcp

References

  • CVE-2017-2625

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