GHSA-9jrh-5pwj-wfmp
Severity by source
CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Local D-Bus attack requires any authenticated user session (PR:L); only disk availability impacted; no scope change, confidentiality, or integrity effect.
Primary rating from NVD.
CVSS VectorNVD
Lifecycle Timeline
2Description PRE-NVD
AnalysisAI
Disk space exhaustion in malcontent 0.14 is achievable by any local user through a globally accessible D-Bus API that imposes no resource allocation limits (CWE-770). The exposed D-Bus endpoint - part of this GNOME parental controls daemon - can be called without elevated privileges, enabling an unprivileged local user to exhaust host disk space and cause a denial-of-service condition. No active exploitation is confirmed (SSVC: none; EPSS: 0.01%), and a vendor patch is available per the SUSE advisory.
Technical ContextAI
malcontent is a GNOME-ecosystem parental controls library and daemon that manages content restriction policies for user accounts on Linux desktops. It exposes management functionality over D-Bus, a local inter-process communication bus common to freedesktop.org-compatible Linux systems. The vulnerability root cause is CWE-770 (Allocation of Resources Without Limits or Throttling): a D-Bus API endpoint is registered on the system or session bus without access controls restricting which callers may invoke it, and the operations it performs generate disk-resident output without rate limiting or quota enforcement. Any process running as a local user - including unprivileged ones - can repeatedly invoke this endpoint to accumulate disk writes until storage is exhausted. The affected version per EUVD is malcontent 0.14, with the upper bound of the affected range not confirmed in available data.
RemediationAI
A vendor-released patch is confirmed available per the SUSE advisory (https://security.opensuse.org/2026/05/11/malcontent-disk-space-dos.html); the exact fixed version number is not specified in available data and should be confirmed via the Bugzilla tracker at https://bugzilla.suse.com/show_bug.cgi?id=CVE-2026-44931. Users running openSUSE or SUSE Linux Enterprise should apply available distribution updates via zypper or equivalent package manager. As a compensating control where patching is not immediately possible, administrators can restrict access to the malcontent D-Bus service by modifying its D-Bus policy configuration (typically in /etc/dbus-1/system.d/ or /usr/share/dbus-1/system.d/) to limit which users or groups may call the vulnerable interface - note this may break legitimate parental controls functionality. Alternatively, disabling or masking the malcontent daemon service (e.g., systemctl mask malcontent) removes the attack surface entirely if parental controls functionality is not required, though this disables all malcontent features.
Same technique Denial Of Service
View allVendor StatusVendor
SUSE
Severity: Medium| Product | Status |
|---|---|
| SUSE Linux Enterprise Desktop 15 SP7 | Fixed |
| SUSE Linux Enterprise High Performance Computing 15 SP7 | Fixed |
| SUSE Linux Enterprise Module for Desktop Applications 15 SP7 | Fixed |
| SUSE Linux Enterprise Server 15 SP7 | Fixed |
| SUSE Linux Enterprise Server 16.0 | Fixed |
| SUSE Linux Enterprise Server for SAP Applications 15 SP7 | Fixed |
| SUSE Linux Enterprise Server for SAP applications 16.0 | Fixed |
| openSUSE Leap 16.0 | Fixed |
| SUSE Linux Enterprise High Performance Computing 15 SP4 | Fixed |
| SUSE Linux Enterprise High Performance Computing 15 SP4-LTSS | Fixed |
| SUSE Linux Enterprise High Performance Computing 15 SP5 | Fixed |
| SUSE Linux Enterprise High Performance Computing 15 SP5-LTSS | Fixed |
| SUSE Linux Enterprise Module for Desktop Applications 15 SP4 | Fixed |
| SUSE Linux Enterprise Module for Desktop Applications 15 SP5 | Fixed |
| SUSE Linux Enterprise Module for Desktop Applications 15 SP6 | Fixed |
| SUSE Linux Enterprise Server 15 SP4 | Fixed |
| SUSE Linux Enterprise Server 15 SP4-LTSS | Fixed |
| SUSE Linux Enterprise Server 15 SP5 | Fixed |
| SUSE Linux Enterprise Server 15 SP5-LTSS | Fixed |
| SUSE Linux Enterprise Server 15 SP6 | Fixed |
| SUSE Linux Enterprise Server 15 SP6-LTSS | Fixed |
| SUSE Linux Enterprise Server for SAP Applications 15 SP6 | Fixed |
| SUSE Manager Proxy 4.3 | Fixed |
| SUSE Manager Retail Branch Server 4.3 | Fixed |
| SUSE Manager Server 4.3 | Fixed |
| SUSE Linux Enterprise Desktop 15 SP4 | Fixed |
| SUSE Linux Enterprise Desktop 15 SP5 | Fixed |
| SUSE Linux Enterprise Desktop 15 SP6 | Fixed |
| SUSE Linux Enterprise High Performance Computing 15 SP4-ESPOS | Fixed |
| SUSE Linux Enterprise High Performance Computing 15 SP5-ESPOS | Fixed |
| SUSE Linux Enterprise High Performance Computing 15 SP6 | Fixed |
| SUSE Linux Enterprise Real Time 15 SP4 | Fixed |
| SUSE Linux Enterprise Server for SAP Applications 15 SP4 | Fixed |
| SUSE Linux Enterprise Server for SAP Applications 15 SP5 | Fixed |
| openSUSE Leap 15.4 | Fixed |
| openSUSE Leap 15.5 | Fixed |
| openSUSE Leap 15.6 | Fixed |
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External POC / Exploit Code
Leaving vuln.today
EUVD-2026-29921