National Vulnerability Database

National Vulnerability Database

National Vulnerability
Database

CVE-2017-13723 Detail

Current Description

In X.Org Server (aka xserver and xorg-server) before 1.19.4, a local attacker authenticated to the X server could overflow a global buffer, causing crashes of the X server or potentially other problems by injecting large or malformed XKB related atoms and accessing them via xkbcomp.

Source:  MITRE      Last Modified:  10/09/2017      View Analysis Description

Quick Info

CVE Dictionary Entry:
CVE-2017-13723
Original release date:
10/09/2017
Last revised:
02/03/2018
Source:
US-CERT/NIST

Impact

CVSS Severity (version 3.0):
CVSS v3 Base Score:
7.8 High
Vector:
CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H (legend)
Impact Score:
5.9
Exploitability Score:
1.8
CVSS Version 3 Metrics:
Attack Vector (AV):
Local
Attack Complexity (AC):
Low
Privileges Required (PR):
Low
User Interaction (UI):
None
Scope (S):
Unchanged
Confidentiality (C):
High
Integrity (I):
High
Availability (A):
High
CVSS Severity (version 2.0):
CVSS v2 Base Score:
4.6 MEDIUM
Vector:
(AV:L/AC:L/Au:N/C:P/I:P/A:P) (legend)
Impact Subscore:
6.4
Exploitability Subscore:
3.9
CVSS Version 2 Metrics:
Access Vector:
Locally exploitable
Access Complexity:
Low
Authentication:
Not required to exploit
Impact Type:
Allows unauthorized disclosure of information; Allows unauthorized modification; Allows disruption of service

References to Advisories, Solutions, and Tools

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Hyperlink Resource Type Source Name
http://www.debian.org/security/2017/dsa-4000 Third Party Advisory External Source DEBIAN DSA-4000
http://www.openwall.com/lists/oss-security/2017/10/04/10 Mailing List; Third Party Advisory External Source MLIST [oss-security] 20171004 Fwd: X server fixes for CVE-2017-13721 & CVE-2017-13723
http://www.securityfocus.com/bid/101253 Third Party Advisory; VDB Entry External Source BID 101253
https://cgit.freedesktop.org/xorg/xserver/commit/?id=94f11ca5cf011ef123bd222cabeaef6f424d76ac Third Party Advisory External Source CONFIRM https://cgit.freedesktop.org/xorg/xserver/commit/?id=94f11ca5cf011ef123bd222cabeaef6f424d76ac
https://lists.debian.org/debian-lts-announce/2017/11/msg00032.html External Source MLIST [debian-lts-announce] 20171122 [SECURITY] [DLA 1186-1] xorg-server security update
https://lists.x.org/archives/xorg-announce/2017-October/002808.html Vendor Advisory External Source MLIST [xorg-announce] 20171004 [ANNOUNCE] xorg-server 1.19.4
https://security.gentoo.org/glsa/201710-30 Third Party Advisory External Source GENTOO GLSA-201710-30

Technical Details

Vulnerability Type (View All)

Change History 5 change records found - show changes