CVE-2017-2625

Public Exploit

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.

Categories

6.5
CVSS
Severity: Medium
CVSS 3.0 •
CVSS 2.0 •
EPSS 0.03%
Vendor Advisory gentoo.org Vendor Advisory redhat.com
Affected: Xorg libXdmcp
Published at:
Updated at:

References

Link Tags
https://security.gentoo.org/glsa/201704-03 third party advisory vendor advisory
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2017-2625 issue tracking third party advisory
https://access.redhat.com/errata/RHSA-2017:1865 third party advisory vendor advisory
http://www.securitytracker.com/id/1037919 vdb entry third party advisory
https://cgit.freedesktop.org/xorg/lib/libXdmcp/commit/?id=0554324ec6bbc2071f5d1f8ad211a1643e29eb1f third party advisory
http://www.securityfocus.com/bid/96480 vdb entry third party advisory
https://www.x41-dsec.de/lab/advisories/x41-2017-001-xorg/ third party advisory exploit
https://lists.debian.org/debian-lts-announce/2019/11/msg00024.html mailing list

Frequently Asked Questions

What is the severity of CVE-2017-2625?
CVE-2017-2625 has been scored as a medium severity vulnerability.
How to fix CVE-2017-2625?
To fix CVE-2017-2625, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2017-2625 being actively exploited in the wild?
It is possible that CVE-2017-2625 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2017-2625?
CVE-2017-2625 affects Xorg libXdmcp.
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