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.
Published: 2018-08-25
Score: 5.5 Medium
EPSS: < 1% Very Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

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Remediation

No vendor fix or workaround currently provided.

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Tracking

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Advisories
Source ID Title
EUVD EUVD EUVD-2018-7716 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.
Ubuntu USN Ubuntu USN USN-3786-1 libxkbcommon vulnerabilities
Ubuntu USN Ubuntu USN USN-3786-2 libxkbcommon vulnerabilities
History

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Subscriptions

Canonical Ubuntu Linux
Redhat Enterprise Linux
Xkbcommon Libxkbcommon Xkbcommon
cve-icon MITRE

Status: PUBLISHED

Assigner: mitre

Published:

Updated: 2024-08-05T10:10:05.372Z

Reserved: 2018-08-24T00:00:00.000Z

Link: CVE-2018-15859

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Modified

Published: 2018-08-25T21:29:02.170

Modified: 2024-11-21T03:51:35.487

Link: CVE-2018-15859

cve-icon Redhat

Severity : Low

Publid Date: 2017-10-30T00:00:00Z

Links: CVE-2018-15859 - Bugzilla

cve-icon OpenCVE Enrichment

No data.

Weaknesses