Improper Resource Shutdown or Release

Affecting dbus package, versions <1.12.2-1ubuntu1.2

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Overview

Affected versions of this package are vulnerable to Improper Resource Shutdown or Release. 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.

Remediation

Upgrade dbus to version or higher.

References

CVSS Score

5.5
medium severity
  • Attack Vector
    Local
  • Attack Complexity
    Low
  • Privileges Required
    Low
  • User Interaction
    None
  • Scope
    Unchanged
  • Confidentiality
    None
  • Integrity
    None
  • Availability
    High
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CVE
CVE-2020-12049
CWE
CWE-404
Snyk ID
SNYK-UBUNTU1804-DBUS-571314
Disclosed
08 Jun, 2020
Published
03 Jun, 2020