CVE-2013-4327

medium
Published 2013-10-03 · Modified 2026-04-29
CVSS v3
CVSS v2
6.9
VIR risk
6.9

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.

Predictions

Exploit likelihood
20%
Patch ETA

Heuristic predictions, AS-IS, for prioritization only.

Mitigations

vendor Authored 2026-05-27

Vendor advisory: debian — https://security-tracker.debian.org/tracker/CVE-2013-4327

vendor Authored 2026-05-27

Vendor advisory: secalert@redhat.com — https://bugzilla.redhat.com/show_bug.cgi?id=1006680

vendor Authored 2026-05-27

Vendor advisory: secalert@redhat.com — http://www.ubuntu.com/usn/USN-1961-1

OS impact

OSVersionStatusFixed in
ubuntu ubuntu13.04affected
debian debian7.0affected
debian debianbookwormfixed204-5
debian debianbullseyefixed204-5
debian debianforkyfixed204-5
debian debiansidfixed204-5
debian debiantrixiefixed204-5

Application impact

VendorProductVersionsFixed
systemd_projectsystemd{"endIncluding":"207"}

References

CWEs

CWE-362

Verify integrity in audit chain (admin only). AS-IS.