CVE-2017-2625

Name: CVE-2017-2625
Creator: NVD / NIST
Published: 2018-07-27T18:29:00.86+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

UnknownEPSS 0.54%

Last modified Jun 17, 2026

CVE-2017-2625 is a vulnerability of currently unknown severity. 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.. EPSS estimates a 0.54% chance of exploitation in the next 30 days.

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.

Metrics

EPSS Probability

0.54%

41.2th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
X.Org	Libxdmcp	< 1.1.2
Redhat	Enterprise Linux	7.0
Redhat	Enterprise Linux Desktop	7.0
Redhat	Enterprise Linux Server	7.0
Redhat	Enterprise Linux Server Aus	7.4
Redhat	Enterprise Linux Server Eus	7.4
Redhat	Enterprise Linux Server Eus	7.5
Redhat	Enterprise Linux Workstation	7.0

References

http://www.securityfocus.com/bid/96480Third Party Advisory, VDB Entry
http://www.securitytracker.com/id/1037919Third Party Advisory, VDB Entry
https://access.redhat.com/errata/RHSA-2017:1865Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2017-2625Issue Tracking, Third Party Advisory
https://cgit.freedesktop.org/xorg/lib/libXdmcp/commit/?id=0554324ec6bbc2071f5d1f8ad211a1643e29eb1fThird Party Advisory
https://lists.debian.org/debian-lts-announce/2019/11/msg00024.html
https://security.gentoo.org/glsa/201704-03Third Party Advisory
https://www.x41-dsec.de/lab/advisories/x41-2017-001-xorg/Exploit, Third Party Advisory
http://www.securityfocus.com/bid/96480Third Party Advisory, VDB Entry
http://www.securitytracker.com/id/1037919Third Party Advisory, VDB Entry
https://access.redhat.com/errata/RHSA-2017:1865Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2017-2625Issue Tracking, Third Party Advisory
https://cgit.freedesktop.org/xorg/lib/libXdmcp/commit/?id=0554324ec6bbc2071f5d1f8ad211a1643e29eb1fThird Party Advisory
https://lists.debian.org/debian-lts-announce/2019/11/msg00024.html
https://security.gentoo.org/glsa/201704-03Third Party Advisory
https://www.x41-dsec.de/lab/advisories/x41-2017-001-xorg/Exploit, Third Party Advisory

Timeline

Published: Jul 27, 2018
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2017-2625?

How severe is CVE-2017-2625?

Severity scoring for CVE-2017-2625 is pending analysis. The EPSS model estimates a 0.54% probability of exploitation in the next 30 days.

How do I fix CVE-2017-2625?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2017-2625?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST