An issue was discovered in dbus >= 1.3.0 before 1.12.18....
Vulnerability Description
An issue was discovered in dbus >= 1.3.0 before 1.12.18. The DBusServer in libdbus, as used in dbus-daemon, leaks file descriptors when a message exceeds the per-message file descriptor limit. A local attacker with access to the D-Bus system bus or another system service's private AF_UNIX socket could use this to make the system service reach its file descriptor limit, denying service to subsequent D-Bus clients.
Impact Analysis
Refer to official advisory for detailed impact metrics.
Remediation
Ensure systems are updated to the latest vendor-supplied patch levels.
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Credits & Attribution
No credits recorded in the NVD database.
References
- https://gitlab.freedesktop.org/dbus/dbus/-/issues/294
- https://gitlab.freedesktop.org/dbus/dbus/-/tags/dbus-1.13.16
- http://www.openwall.com/lists/oss-security/2020/06/04/3
- https://gitlab.freedesktop.org/dbus/dbus/-/tags/dbus-1.12.18
- https://gitlab.freedesktop.org/dbus/dbus/-/tags/dbus-1.10.30
- https://usn.ubuntu.com/4398-1/
- https://usn.ubuntu.com/4398-2/
- https://security.gentoo.org/glsa/202007-46
- https://securitylab.github.com/advisories/GHSL-2020-057-DBus-DoS-file-descriptor-leak
- http://packetstormsecurity.com/files/172840/D-Bus-File-Descriptor-Leak-Denial-Of-Service.html
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CVSS Vectors
Weaknesses (CWE)
No CWE data available
MITRE ATT&CK TTPs
No associated TTPs found for this vulnerability.