CVE-2017-13723

HIGH

X.Org Server < 1.19.4 - Authenticated Buffer Overflow via XKB Atom Injection

Title source: llm
STIX 2.1

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.

References (7)

Core 7
Core References
Third Party Advisory, VDB Entry vdb-entry x_refsource_bid
http://www.securityfocus.com/bid/101253
Mailing List mailing-list x_refsource_mlist
https://lists.debian.org/debian-lts-announce/2017/11/msg00032.html
Third Party Advisory vendor-advisory x_refsource_gentoo
https://security.gentoo.org/glsa/201710-30
Mailing List, Third Party Advisory mailing-list x_refsource_mlist
http://www.openwall.com/lists/oss-security/2017/10/04/10
Third Party Advisory vendor-advisory x_refsource_debian
http://www.debian.org/security/2017/dsa-4000
Vendor Advisory mailing-list x_refsource_mlist
https://lists.x.org/archives/xorg-announce/2017-October/002808.html

Scores

CVSS v3 7.8
EPSS 0.0044
EPSS Percentile 35.5%
Attack Vector LOCAL
CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Details

CWE
CWE-119
Status published
Products (3)
debian/debian_linux 8.0
debian/debian_linux 9.0
x.org/x_server < 1.19.3
Published Oct 10, 2017
Tracked Since Feb 18, 2026