Detections
Analytics
Linux Distros Unpatched Vulnerability : CVE-2018-15861
medium Nessus Plugin ID 277143
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Synopsis
The Linux/Unix host has one or more packages installed with a vulnerability that the vendor indicates will not be patched.Description
The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available.- Unchecked NULL pointer usage 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 that triggers an xkb_intern_atom failure. (CVE-2018-15861)
Note that Nessus relies on the presence of the package as reported by the vendor.
Solution
There is no known solution at this time.See Also
Plugin Details
Severity: Medium
ID: 277143
File Name: unpatched_CVE_2018_15861.nasl
Version: 1.2
Type: local
Agent: unix
Family: Misc.
Published: 12/3/2025
Updated: 12/4/2025
Supported Sensors: Agentless Assessment, Frictionless Assessment Agent, Frictionless Assessment AWS, Frictionless Assessment Azure, Nessus Agent, Nessus
Risk Information
VPR
Risk Factor: Low
Score: 3.6
CVSS v2
Risk Factor: Low
Base Score: 2.1
Temporal Score: 1.8
Vector: CVSS2#AV:L/AC:L/Au:N/C:N/I:N/A:P
CVSS Score Source: CVE-2018-15861
CVSS v3
Risk Factor: Medium
Base Score: 5.5
Temporal Score: 5.1
Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Temporal Vector: CVSS:3.0/E:U/RL:U/RC:C
Vulnerability Information
CPE: cpe:/o:debian:debian_linux:11.0, cpe:/o:redhat:enterprise_linux:9, p-cpe:/a:debian:debian_linux:x11-xkb-utils, p-cpe:/a:redhat:enterprise_linux:xkbcomp, cpe:/o:debian:debian_linux:14.0, cpe:/o:debian:debian_linux:12.0, cpe:/o:redhat:enterprise_linux:10, cpe:/o:debian:debian_linux:13.0
Required KB Items: Host/cpu, Host/local_checks_enabled, global_settings/vendor_unpatched, Host/OS/identifier
Exploit Ease: No known exploits are available
Vulnerability Publication Date: 8/25/2018
Reference Information
CVE: CVE-2018-15861