CVE-2011-1784
The pidfile_write function in core/pidfile.c in keepalived 1.2.2 and earlier uses 0666...
The pidfile_write function in core/pidfile.c in keepalived 1.2.2 and earlier uses 0666 permissions for the (1) keepalived.pid, (2) checkers.pid, and (3) vrrp.pid files in /var/run/, which allows local users to kill arbitrary processes by writing a PID to one of these files.
Exploit likelihood
What each source reports
NVD Score used
The pidfile_write function in core/pidfile.c in keepalived 1.2.2 and earlier uses 0666 permissions for the (1) keepalived.pid, (2) checkers.pid, and (3) vrrp.pid files in /var/run/, which allows local users to kill arbitrary processes by writing a PID to one of these files.
- Record
CVE-2011-1784- CVSS 2.0
- 3.6 Low
AV:L/AC:L/Au:N/C:N/I:P/A:P - Weakness
- CWE-264
- Updated
- 2026-11-02
CVE List No score
The pidfile_write function in core/pidfile.c in keepalived 1.2.2 and earlier uses 0666 permissions for the (1) keepalived.pid, (2) checkers.pid, and (3) vrrp.pid files in /var/run/, which allows local users to kill arbitrary processes by writing a PID to one of these files.
- Record
CVE-2011-1784- Updated
- 2026-11-02
EUVDEUVD-2011-1782 No score
The pidfile_write function in core/pidfile.c in keepalived 1.2.2 and earlier uses 0666 permissions for the (1) keepalived.pid, (2) checkers.pid, and (3) vrrp.pid files in /var/run/, which allows local users to kill arbitrary processes by writing a PID to one of these files.
- Record
EUVD-2011-1782- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-xjrv-p75r-gqqr No score
The pidfile_write function in core/pidfile.c in keepalived 1.2.2 and earlier uses 0666...
The pidfile_write function in core/pidfile.c in keepalived 1.2.2 and earlier uses 0666 permissions for the (1) keepalived.pid, (2) checkers.pid, and (3) vrrp.pid files in /var/run/, which allows local users to kill arbitrary processes by writing a PID to one of these files.
- Record
GHSA-xjrv-p75r-gqqr- Updated
- 2026-11-02
OSV No score
The pidfile_write function in core/pidfile.c in keepalived 1.2.2 and earlier uses 0666 permissions for the (1) keepalived.pid, (2) checkers.pid, and (3) vrrp.pid files in /var/run/, which allows local users to kill arbitrary processes by writing a PID to one of these files.
- Record
CVE-2011-1784- Updated
- 2026-11-02
OSVDEBIAN-CVE-2011-1784 No score
The pidfile_write function in core/pidfile.c in keepalived 1.2.2 and earlier uses 0666 permissions for the (1) keepalived.pid, (2) checkers.pid, and (3) vrrp.pid files in /var/run/, which allows local users to kill arbitrary processes by writing a PID to one of these files.
- Record
DEBIAN-CVE-2011-1784- Updated
- 2026-11-02
OSVUBUNTU-CVE-2011-1784 No score
The pidfile_write function in core/pidfile.c in keepalived 1.2.2 and earlier uses 0666 permissions for the (1) keepalived.pid, (2) checkers.pid, and (3) vrrp.pid files in /var/run/, which allows local users to kill arbitrary processes by writing a PID to one of these files.
- Record
UBUNTU-CVE-2011-1784- Updated
- 2026-11-02
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
keepalivedDebian:12 |
before 1:1.2.2-2 | 1:1.2.2-2 |
keepalivedDebian:13 |
before 1:1.2.2-2 | 1:1.2.2-2 |
keepalivedDebian:14 |
before 1:1.2.2-2 | 1:1.2.2-2 |
History
| Recorded | Changed | Sources |
|---|---|---|
| affected | ||
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2011-1784 is a low vulnerability (CVSS 3.6) in Keepalived, published May 20, 2011. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.37%, the 30th percentile. Fixed in keepalived 1:1.2.2-2.
References
exchange.xforce.ibmcloud.com/vulnerabilities/67477
lists.debian.org/debian-security/2011/05/msg00018.html
openwall.com/lists/oss-security/2011/05/10/5
securityfocus.com/bid/47859
osvdb.org/72380
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bugs.debian.org/cgi-bin/bugreport.cgi?bug=626281
secunia.com/advisories/44460
bugzilla.redhat.com/show_bug.cgi?id=704039
nvd.nist.gov/vuln/detail/CVE-2011-1784
github.com/advisories/GHSA-xjrv-p75r-gqqr
security-tracker.debian.org/tracker/CVE-2011-1784
ubuntu.com/security/CVE-2011-1784
cve.org/CVERecord?id=CVE-2011-1784