CVE-2011-2147

What it is

Openswan 2.2.x does not properly restrict permissions for (1) /var/run/starter.pid, related to starter.c in the IPsec starter, and (2) /var/lock/subsys/ipsec, which allows local users to kill arbitrary processes by writing a PID to a file, or possibly bypass disk quotas by writing arbitrary data to a file, as demonstrated by files with 0666 permissions, a different vulnerability than CVE-2011-1784.

At a glance

Exploitability

Can be exploited locally on the machine without logging in. Limited direct impact.

Exploit odds

0.3% chance of exploitation in the next 30 days (EPSS).

Fix

No patch or advisory is linked yet. Look at mitigations or restrict exposure.

Timeline

1. 2011-05-20 22:55 UTC PublishedDisclosed publicly on CVE.org and NVD
2. 2026-06-16 23:30 UTC Last updatedMost recent change to the record

Why it ranks here

• Exploited in the wild: no, CISA does not list it.
• Exploit odds: 0.3% in the next 30 days (EPSS).
• Severity: 3.6 LOW (CVSS).
• Fix: none linked yet, which raises it.

Details

Published

2011-05-20 22:55 UTC

Last modified

2026-06-16 23:30 UTC

Exploit probability

0.3% · EPSS, next 30 days

Weakness

CWE-264

Record status

Modified

Affected

• Openswan 2.2.0
• Openswan 2.2.1

Attack profile CVSS 2.0 · 3.6

Attack vector

Local

Complexity

Low

Authentication

None

Confidentiality

None

Integrity

Partial

Availability

Partial

Is it in your code?

Hand this to your coding agent. It searches your project for the affected products and checks versions. Nothing leaves your machine.

Read https://cve-list.com/agent/cve/CVE-2011-2147.md and follow it. Check whether this project is affected by CVE-2011-2147. Read only. Don't change anything and don't upload my code. Tell me yes, no or not sure, with the file as proof.

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