CVE-2018-15859

Impact:
Low
Public Date:
2017-10-30
CWE:
CWE-476
Bugzilla:
1623026: CVE-2018-15859 libxkbcommon: NULL pointer dereference when parsing invalid atoms in ExprResolveLhs resulting in a crash

The MITRE CVE dictionary describes this issue as:

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.

Find out more about CVE-2018-15859 from the MITRE CVE dictionary dictionary and NIST NVD.

CVSS v3 metrics

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

CVSS3 Base Score 3.3
CVSS3 Base Metrics CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L
Attack Vector Local
Attack Complexity Low
Privileges Required None
User Interaction Required
Scope Unchanged
Confidentiality None
Integrity Impact None
Availability Impact Low

Affected Packages State

Platform Package State
Red Hat Enterprise Linux 7 libxkbcommon Affected

Last Modified

CVE description copyright © 2017, The MITRE Corporation

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