Vulnerability Description
systemd does not properly use D-Bus for communication with a polkit authority, which allows local users to bypass intended access restrictions by leveraging a PolkitUnixProcess PolkitSubject race condition via a (1) setuid process or (2) pkexec process, a related issue to CVE-2013-4288.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Systemd Project | Systemd | <= 207 |
| Debian | Debian Linux | 7.0 |
| Canonical | Ubuntu Linux | 13.04 |
Related Weaknesses (CWE)
References
- http://www.debian.org/security/2013/dsa-2777Third Party Advisory
- http://www.openwall.com/lists/oss-security/2013/09/18/6Mailing ListThird Party Advisory
- http://www.ubuntu.com/usn/USN-1961-1Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1006680Issue TrackingPatchThird Party Advisory
- http://www.debian.org/security/2013/dsa-2777Third Party Advisory
- http://www.openwall.com/lists/oss-security/2013/09/18/6Mailing ListThird Party Advisory
- http://www.ubuntu.com/usn/USN-1961-1Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1006680Issue TrackingPatchThird Party Advisory
FAQ
What is CVE-2013-4327?
CVE-2013-4327 is a vulnerability with a CVSS score of 6.9 (MEDIUM). systemd does not properly use D-Bus for communication with a polkit authority, which allows local users to bypass intended access restrictions by leveraging a PolkitUnixProcess PolkitSubject race cond...
How severe is CVE-2013-4327?
CVE-2013-4327 has been rated MEDIUM with a CVSS base score of 6.9/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2013-4327?
Check the references section above for vendor advisories and patch information. Affected products include: Systemd Project Systemd, Debian Debian Linux, Canonical Ubuntu Linux.