CVE-2017-13723

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.

CVSS v3.0 7.8 HIGH
CVSS v2.0 4.6 MEDIUM

7.8^/10

CVSS v3.0 : HIGH

Vector : AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Exploitability : 1.8 / Impact : 5.9

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

4.6^/10

CVSS v2.0 : MEDIUM

Vector : AV:L/AC:L/Au:N/C:P/I:P/A:P

Exploitability : 3.9 / Impact : 6.4

Access Vector LOCAL

Access Complexity LOW

Authentication NONE

Confidentiality Impact PARTIAL

Integrity Impact PARTIAL

Availability Impact PARTIAL

References

Link	Resource
https://lists.x.org/archives/xorg-announce/2017-October/002808.html	Vendor Advisory
https://cgit.freedesktop.org/xorg/xserver/commit/?id=94f11ca5cf011ef123bd222cabeaef6f424d76ac	Third Party Advisory
http://www.openwall.com/lists/oss-security/2017/10/04/10	Mailing List Third Party Advisory
http://www.securityfocus.com/bid/101253	Third Party Advisory VDB Entry
https://security.gentoo.org/glsa/201710-30	Third Party Advisory
http://www.debian.org/security/2017/dsa-4000	Third Party Advisory
https://lists.debian.org/debian-lts-announce/2017/11/msg00032.html

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Configurations

Configuration 1 (hide)

cpe:2.3:a:x.org:xorg-server:*:*:*:*:*:*:*:*

Configuration 2 (hide)

OR	cpe:2.3:o:debian:debian_linux:8.0:::::::*
	cpe:2.3:o:debian:debian_linux:9.0:::::::*

Information

Published : 2017-10-09 18:30

Updated : 2018-02-03 18:29

NVD link : CVE-2017-13723

Mitre link : CVE-2017-13723

JSON object : View

CWE

CWE-119

Improper Restriction of Operations within the Bounds of a Memory Buffer

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Products Affected

debian

debian_linux

x.org

xorg-server

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