CVE-2014-3638

The bus_connections_check_reply function in config-parser.c in D-Bus before 1.6.24 and 1.8.x before 1.8.8 allows local users to cause a denial of service (CPU consumption) via a large number of method calls.

Published: 2014-09-22 Last update: 2026-05-06 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2014-3638 is rated Low Risk (16.8/100): CVSS Low severity, with low exploitation likelihood (EPSS 0.09%). Low composite risk—no urgent action required; patch on your normal maintenance cycle and revisit priority if CVSS or EPSS increases.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2014-3638

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2025-03-17 0.04% 0.09% +0.05%
2 2023-03-07 1.28% 0.04% -1.24%
3 2022-02-04 — 1.28% —

Full EPSS history (3 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2014-3638

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
2.1 2.0 LOW
AV:L/AC:L/Au:N/C:N/I:N/A:P Click to expand
Access vector (AV:L)
Requires local access to the target system.
Access complexity (AC:L)
Exploitation conditions are straightforward and predictable.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:N)
No confidentiality impact.
Integrity impact (I:N)
No integrity impact.
Availability impact (A:P)
Partial availability impact.
 3.9 2.9 [email protected]

Weakness enumeration for CVE-2014-3638

OS Trackers for CVE-2014-3638

vendor priority summary link
debian not yet assigned CVE-2014-3638 not yet assigned priority: Debian including 1 source packages (dbus), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5. https://security-tracker.debian.org/tracker/CVE-2014-3638
gentoo normal CVE-2014-3638: 1 GLSA(s) (201412-12), 1 atom(s) (sys-apps/dbus); latest impact normal. https://bugs.gentoo.org/buglist.cgi?quicksearch=CVE-2014-3638
redhat low — https://access.redhat.com/security/cve/CVE-2014-3638
suse medium CVE-2014-3638 severity moderate: SUSE including 76 source package names (dbus-1-1.10.12-2.1, dbus-1-1.12.2-1.76, …), 125 product×package rows across 34 product lines (SUSE Linux Enterprise Desktop 11 SP3, SUSE Linux Enterprise Desktop 12, … (34 product lines)): Fixed 125. https://www.suse.com/security/cve/CVE-2014-3638/
ubuntu medium CVE-2014-3638 medium priority: Ubuntu including 1 source packages (dbus), 4 status rows across 4 suites (lucid, precise, trusty, upstream): released 4. https://ubuntu.com/security/CVE-2014-3638

Affected software / configurations for CVE-2014-3638

Vendor Product Version Raw CPE
d-bus_project d-bus <= 1.6.22 cpe:2.3:a:d-bus_project:d-bus:*:*:*:*:*:*:*:*
freedesktop dbus 1.6.0 cpe:2.3:a:freedesktop:dbus:1.6.0:*:*:*:*:*:*:*
freedesktop dbus 1.6.2 cpe:2.3:a:freedesktop:dbus:1.6.2:*:*:*:*:*:*:*
freedesktop dbus 1.6.4 cpe:2.3:a:freedesktop:dbus:1.6.4:*:*:*:*:*:*:*
freedesktop dbus 1.6.6 cpe:2.3:a:freedesktop:dbus:1.6.6:*:*:*:*:*:*:*
freedesktop dbus 1.6.8 cpe:2.3:a:freedesktop:dbus:1.6.8:*:*:*:*:*:*:*
freedesktop dbus 1.6.10 cpe:2.3:a:freedesktop:dbus:1.6.10:*:*:*:*:*:*:*
freedesktop dbus 1.6.12 cpe:2.3:a:freedesktop:dbus:1.6.12:*:*:*:*:*:*:*
freedesktop dbus 1.6.14 cpe:2.3:a:freedesktop:dbus:1.6.14:*:*:*:*:*:*:*
freedesktop dbus 1.6.16 cpe:2.3:a:freedesktop:dbus:1.6.16:*:*:*:*:*:*:*
freedesktop dbus 1.6.18 cpe:2.3:a:freedesktop:dbus:1.6.18:*:*:*:*:*:*:*
freedesktop dbus 1.6.20 cpe:2.3:a:freedesktop:dbus:1.6.20:*:*:*:*:*:*:*
freedesktop dbus 1.8.0 cpe:2.3:a:freedesktop:dbus:1.8.0:*:*:*:*:*:*:*
freedesktop dbus 1.8.2 cpe:2.3:a:freedesktop:dbus:1.8.2:*:*:*:*:*:*:*
freedesktop dbus 1.8.4 cpe:2.3:a:freedesktop:dbus:1.8.4:*:*:*:*:*:*:*
freedesktop dbus 1.8.6 cpe:2.3:a:freedesktop:dbus:1.8.6:*:*:*:*:*:*:*
opensuse opensuse 12.3 cpe:2.3:o:opensuse:opensuse:12.3:*:*:*:*:*:*:*

References for CVE-2014-3638

cvelogic Threat Intelligence