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National Vulnerability Database

National Vulnerability Database

NVD

National Vulnerability Database
  1. Vulnerabilities

CVE-2017-2624 Detail

Description

It was found that xorg-x11-server before 1.19.0 including uses memcmp() to check the received MIT cookie against a series of valid cookies. If the cookie is correct, it is allowed to attach to the Xorg session. Since most memcmp() implementations return after an invalid byte is seen, this causes a time difference between a valid and invalid byte, which could allow an efficient brute force attack.


Metrics

 
NVD enrichment efforts reference publicly available information to associate vector strings. CVSS information contributed by other sources is also displayed.
CVSS 4.0 Severity and Vector Strings:

NIST CVSS score
NIST: NVD
N/A
NVD assessment not yet provided.

References to Advisories, Solutions, and Tools

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Hyperlink Resource
http://www.securityfocus.com/bid/96480 Third Party Advisory  VDB Entry 
http://www.securitytracker.com/id/1037919 Third Party Advisory  VDB Entry 
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2017-2624 Exploit  Issue Tracking  Third Party Advisory 
https://gitlab.freedesktop.org/xorg/xserver/commit/d7ac755f0b618eb1259d93c8a16ec6e39a18627c Patch  Third Party Advisory 
https://lists.debian.org/debian-lts-announce/2017/11/msg00032.html Third Party Advisory 
https://security.gentoo.org/glsa/201704-03 Third Party Advisory 
https://security.gentoo.org/glsa/201710-30 Third Party Advisory 
https://www.x41-dsec.de/lab/advisories/x41-2017-001-xorg/ Exploit  Third Party Advisory 

Weakness Enumeration

CWE-ID CWE Name Source
CWE-200 Exposure of Sensitive Information to an Unauthorized Actor cwe source acceptance level NIST  
CWE-385 Covert Timing Channel Red Hat, Inc.  

Known Affected Software Configurations Switch to CPE 2.2

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Change History

5 change records found show changes

Quick Info

CVE Dictionary Entry:
CVE-2017-2624
NVD Published Date:
07/27/2018
NVD Last Modified:
10/09/2019
Source:
Red Hat, Inc.