CVE-2018-15856 - CVE House
Back to Database
Status published Medium CVE-2018-15856

An infinite loop when reaching EOL unexpectedly in compose/parser.c (aka...

Vulnerability Description

An infinite loop when reaching EOL unexpectedly in compose/parser.c (aka the keymap parser) in xkbcommon before 0.8.1 could be used by local attackers to cause a denial of service during parsing of crafted keymap files.

Impact Analysis

Refer to official advisory for detailed impact metrics.

Remediation

Ensure systems are updated to the latest vendor-supplied patch levels.

THREAT MONITOR

Am I Vulnerable?

Launch our assessment wizard to check if your infrastructure is exposed to • CVE-2018-15856

Credits & Attribution

No credits recorded in the NVD database.

References

More from xkbcommon

View All →
CVE-2018-15864
Unchecked NULL pointer usage in resolve_keysym in xkbcomp/parser.y in xkbcommon...
Medium 5.5
CVE-2018-15863
Unchecked NULL pointer usage in ResolveStateAndPredicate in xkbcomp/compat.c in xkbcommon...
Medium 5.5
CVE-2018-15862
Unchecked NULL pointer usage in LookupModMask in xkbcomp/expr.c in xkbcommon...
Medium 5.5
CVE-2018-15861
Unchecked NULL pointer usage in ExprResolveLhs in xkbcomp/expr.c in xkbcommon...
Medium 5.5
CVE-2018-15859
Unchecked NULL pointer usage when parsing invalid atoms in ExprResolveLhs...
Medium 5.5

Affected Vendor

Affected Software

xkbcommon, ubuntu linux
Vulnerable Versions:
0, 14.04, 16.04, 18.04

Timeline

Official Publish: August 25th, 2018
Last Modified: August 5th, 2024
Added to House: July 20th, 2026

CVSS Vectors

V3: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Weaknesses (CWE)

No CWE data available

MITRE ATT&CK TTPs

No associated TTPs found for this vulnerability.