CVE-2017-2624

CVSS V2 Low 1.9 CVSS V3 High 7
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.
Overview
  • CVE ID
  • CVE-2017-2624
  • Assigner
  • secalert@redhat.com
  • Vulnerability Status
  • Modified
  • Published Version
  • 2018-07-27T18:29:00
  • Last Modified Date
  • 2019-10-09T23:26:58
Weakness Enumerations
CWE URL
CWE-200 http://cwe.mitre.org/data/definitions/200.html
CPE Configuration (Product)
CPE Vulnerable Operator Version Start Version End
cpe:2.3:a:x.org:xorg-server:*:*:*:*:*:*:*:* 1 OR 1.19.4
cpe:2.3:o:debian:debian_linux:7.0:*:*:*:*:*:*:* 1 OR
CVSS Version 2
  • Version
  • 2.0
  • Vector String
  • AV:L/AC:M/Au:N/C:P/I:N/A:N
  • Access Vector
  • LOCAL
  • Access Compatibility
  • MEDIUM
  • Authentication
  • NONE
  • Confidentiality Impact
  • PARTIAL
  • Integrity Impact
  • NONE
  • Availability Impact
  • NONE
  • Base Score
  • 1.9
  • Severity
  • LOW
  • Exploitability Score
  • 3.4
  • Impact Score
  • 2.9
CVSS Version 3
  • Version
  • 3.0
  • Vector String
  • CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
  • Attack Vector
  • LOCAL
  • Attack Compatibility
  • HIGH
  • Privileges Required
  • LOW
  • User Interaction
  • NONE
  • Scope
  • UNCHANGED
  • Confidentiality Impact
  • HIGH
  • Availability Impact
  • HIGH
  • Base Score
  • 7
  • Base Severity
  • HIGH
  • Exploitability Score
  • 1
  • Impact Score
  • 5.9
References
Reference URL Reference Tags
https://www.x41-dsec.de/lab/advisories/x41-2017-001-xorg/ Exploit Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2017-2624 Exploit Issue Tracking Third Party Advisory
https://security.gentoo.org/glsa/201710-30 Third Party Advisory
https://security.gentoo.org/glsa/201704-03 Third Party Advisory
https://lists.debian.org/debian-lts-announce/2017/11/msg00032.html Third Party Advisory
http://www.securitytracker.com/id/1037919 Third Party Advisory VDB Entry
http://www.securityfocus.com/bid/96480 Third Party Advisory VDB Entry
https://gitlab.freedesktop.org/xorg/xserver/commit/d7ac755f0b618eb1259d93c8a16ec6e39a18627c Patch Third Party Advisory
Sources
Source Name Source URL
NIST https://nvd.nist.gov/vuln/detail/CVE-2017-2624
MITRE https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-2624
History
Created Old Value New Value Data Type Notes
2022-05-10 17:09:37 Added to TrackCVE
2022-12-03 10:35:51 2018-07-27T18:29Z 2018-07-27T18:29:00 CVE Published Date updated
2022-12-03 10:35:51 2019-10-09T23:26:58 CVE Modified Date updated
2022-12-03 10:35:51 Modified Vulnerability Status updated