CVE-2013-4327

Severity: medium (CVSS 6.9 v2.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.3% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2013-10-03 · updated 2026-06-16
Weakness: CWE-362

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.

Affected products

Canonical Ubuntu Linux: 13.04
Debian Linux: 7.0
systemd: through 207

References

http://www.debian.org/security/2013/dsa-2777
http://www.openwall.com/lists/oss-security/2013/09/18/6
http://www.ubuntu.com/usn/USN-1961-1
https://bugzilla.redhat.com/show_bug.cgi?id=1006680
http://www.debian.org/security/2013/dsa-2777
http://www.openwall.com/lists/oss-security/2013/09/18/6
http://www.ubuntu.com/usn/USN-1961-1
https://bugzilla.redhat.com/show_bug.cgi?id=1006680

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