CVE-2017-2625

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.

References

https://www.x41-dsec.de/lab/advisories/x41-2017-001-xorg/

https://security.gentoo.org/glsa/201704-03

https://lists.debian.org/debian-lts-announce/2019/11/msg00024.html

https://cgit.freedesktop.org/xorg/lib/libXdmcp/commit/?id=0554324ec6bbc2071f5d1f8ad211a1643e29eb1f

https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2017-2625

https://access.redhat.com/errata/RHSA-2017:1865

http://www.securitytracker.com/id/1037919

http://www.securityfocus.com/bid/96480

Details

Source: Mitre, NVD

Risk Information

CVSS v2

CVSS v3