CVE-2024-34397: n/a
An issue was discovered in GNOME GLib before 2.78.5, and 2.79.x and 2.80.x before 2.80.1. When a GDBus-based client subscribes to signals from a trusted system service such as NetworkManager on a shared computer, other users of the same computer can send spoofed D-Bus signals that the GDBus-based client will wrongly interpret as having been sent by the trusted system service. This could lead to the GDBus-based client behaving incorrectly, with an application-dependent impact.
AI Analysis
Technical Summary
CVE-2024-34397 is a vulnerability in GNOME GLib affecting GDBus-based clients that subscribe to signals from trusted system services on shared computers. Due to insufficient authentication of D-Bus signals, other users on the same system can spoof these signals, causing the client to misinterpret them as legitimate. This flaw exists in GLib versions prior to 2.78.5 and in the 2.79.x and 2.80.x series before 2.80.1. The impact is application-dependent and may lead to incorrect client behavior. The vulnerability has a CVSS 3.1 base score of 5.2 (medium severity), with an attack vector requiring physical or local access (AV:P), low attack complexity, no privileges required, no user interaction, unchanged scope, no confidentiality impact, high integrity impact, and low availability impact.
Potential Impact
Unprivileged users on a shared system can send spoofed D-Bus signals to GDBus-based clients that trust signals from system services like NetworkManager. This can cause the client to behave incorrectly, potentially leading to integrity violations depending on the application. There is no confidentiality impact, and availability impact is low. The vulnerability requires local access to the system.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until a fix is available, limit untrusted user access on shared systems where GDBus clients subscribe to trusted system service signals. Monitor vendor channels for official fixes or updates addressing this issue.
CVE-2024-34397: n/a
Description
An issue was discovered in GNOME GLib before 2.78.5, and 2.79.x and 2.80.x before 2.80.1. When a GDBus-based client subscribes to signals from a trusted system service such as NetworkManager on a shared computer, other users of the same computer can send spoofed D-Bus signals that the GDBus-based client will wrongly interpret as having been sent by the trusted system service. This could lead to the GDBus-based client behaving incorrectly, with an application-dependent impact.
CVSS v3.1
Score 5.2medium
Affected software
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Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2024-34397 is a vulnerability in GNOME GLib affecting GDBus-based clients that subscribe to signals from trusted system services on shared computers. Due to insufficient authentication of D-Bus signals, other users on the same system can spoof these signals, causing the client to misinterpret them as legitimate. This flaw exists in GLib versions prior to 2.78.5 and in the 2.79.x and 2.80.x series before 2.80.1. The impact is application-dependent and may lead to incorrect client behavior. The vulnerability has a CVSS 3.1 base score of 5.2 (medium severity), with an attack vector requiring physical or local access (AV:P), low attack complexity, no privileges required, no user interaction, unchanged scope, no confidentiality impact, high integrity impact, and low availability impact.
Potential Impact
Unprivileged users on a shared system can send spoofed D-Bus signals to GDBus-based clients that trust signals from system services like NetworkManager. This can cause the client to behave incorrectly, potentially leading to integrity violations depending on the application. There is no confidentiality impact, and availability impact is low. The vulnerability requires local access to the system.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until a fix is available, limit untrusted user access on shared systems where GDBus clients subscribe to trusted system service signals. Monitor vendor channels for official fixes or updates addressing this issue.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- mitre
- Date Reserved
- 2024-05-02T00:00:00.000Z
- Cvss Version
- 3.1
- State
- PUBLISHED
Threat ID: 690a3b4eff58c9332ff0738c
Added to database: 11/04/2025, 17:43:42 UTC
Last enriched: 07/15/2026, 11:27:05 UTC
Last updated: 09/10/2026, 19:36:48 UTC
Views: 86
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