CVE-2013-4327 Race condition in n/a

What is CVE-2013-4327?

CVE-2013-4327 is a medium-severity vulnerability in Canonical Ubuntu Linux, published on 3 Oct 2013. It can only be exploited from the same machine or local network, with no action from the victim.

Official 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.

Weakness: CWE-362

Which versions are affected by CVE-2013-4327?

It affects 3 products.

Products include Canonical Ubuntu Linux, Debian Debian Linux, Systemd Project Systemd.

How do I fix CVE-2013-4327?

Apply the vendor's patch.

Is CVE-2013-4327 being exploited?

There is no known exploitation of CVE-2013-4327 in the wild and no public exploit code.

Other vulnerabilities in Canonical Ubuntu Linux

• CVE-2020-11651 SaltStack Salt Authentication Bypass Exploited Critical 9.8
• CVE-2020-7247 OpenSMTPD Remote Code Execution Exploited Critical 9.8
• CVE-2019-16928 Exim Out-of-bounds Write Exploited Critical 9.8
• CVE-2018-6789 Exim Buffer Overflow Exploited Critical 9.8
• CVE-2015-2590 Oracle Java SE and Java SE Embedded Remote Code Execution Exploited Critical 9.8

All Canonical Ubuntu Linux vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as DEBIAN-CVE-2013-4327, GHSA-v982-v47w-8j5p.