CVE-2018-15859

CVE Details

Release Date:

2018-08-25

Description

Unchecked NULL pointer usage when parsing invalid atoms in ExprResolveLhs in xkbcomp/expr.c in xkbcommon before 0.8.2 could be used by local attackers to crash (NULL pointer dereference) the xkbcommon parser by supplying a crafted keymap file, because lookup failures are mishandled.

See more information about CVE-2018-15859 from MITRE CVE dictionary and NIST NVD

CVSS v3.0 metrics

NOTE: The following CVSS v3.0 metrics and score provided are preliminary and subject to review.

Base Score:	5.5	Base Metrics:	AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Access Vector:	Local network	Attack Complexity:	Low
Privileges Required:	Low	User Interaction:	None
Scope:	Unchanged	Confidentiality Impact:	None
Integrity Impact:	None	Availability Impact:	High

Errata information

Platform	Errata	Release Date
Oracle Linux version 7 (gdm)	ELSA-2019-2079	2019-08-13
Oracle Linux version 7 (libX11)	ELSA-2019-2079	2019-08-13
Oracle Linux version 7 (libxkbcommon)	ELSA-2019-2079	2019-08-13
Oracle Linux version 7 (mesa-libGLw)	ELSA-2019-2079	2019-08-13
Oracle Linux version 7 (xorg-x11-drv-ati)	ELSA-2019-2079	2019-08-13
Oracle Linux version 7 (xorg-x11-drv-vesa)	ELSA-2019-2079	2019-08-13
Oracle Linux version 7 (xorg-x11-drv-wacom)	ELSA-2019-2079	2019-08-13
Oracle Linux version 7 (xorg-x11-server)	ELSA-2019-2079	2019-08-13

This page is generated automatically and has not been checked for errors or omissions. For clarification or corrections please contact the Oracle Linux ULN team