Race condition in dbus - CVE-2015-0245

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Main Vulnerability Database Vulnerabilities #VU32439

Race condition in dbus - CVE-2015-0245

Published: February 13, 2015 / Updated: July 28, 2020


Vulnerability identifier: #VU32439
CSH Severity: Low
CVSS v4: 5.1 [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]
CVE-ID: CVE-2015-0245
CWE-ID: CWE-362
Exploitation vector: Local access
Exploit availability: No public exploit available

Vulnerability details

The vulnerability allows a local non-authenticated attacker to perform service disruption.

D-Bus 1.4.x through 1.6.x before 1.6.30, 1.8.x before 1.8.16, and 1.9.x before 1.9.10 does not validate the source of ActivationFailure signals, which allows local users to cause a denial of service (activation failure error returned) by leveraging a race condition involving sending an ActivationFailure signal before systemd responds.


Affected software

dbus
Gentoo Linux
Ubuntu
dbus (Alpine package)
libdbus-1-3 (Ubuntu package)
dbus (Ubuntu package)

How to mitigate CVE-2015-0245

Install update from vendor's website.

dbus - addressed in versions 1.6.30, 1.8.16, 1.9.10
dbus (Alpine package) - update to 1.6.30-r0
libdbus-1-3 (Ubuntu package) - addressed in versions 1.4.18-1ubuntu1.8, 1.6.18-0ubuntu4.4, 1.10.6-1ubuntu3.1, 1.10.10-1ubuntu1.1
dbus (Ubuntu package) - addressed in versions 1.4.18-1ubuntu1.8, 1.6.18-0ubuntu4.4, 1.10.6-1ubuntu3.1, 1.10.10-1ubuntu1.1

External References

Related Security Bulletins