LOW
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
Published May 20, 2011
3.6
LOWCVSS 2.0
EPSS 0.37%
Description
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.
Affected products
No data.
OR
- ≤ 1.2.2
- 0.2.1
- 0.2.3
- 0.2.6
- 0.2.7
- 0.3.5
- 0.3.6
- 0.3.7
- 0.3.8
- 0.4.8
- 0.4.9
- 0.4.9a
- 0.5.3
- 0.5.5
- 0.5.6
- 0.5.7
- 0.5.8
- 0.5.9
- 0.6.1
- 0.6.2
- 0.6.3
- 0.6.4
- 0.6.5
- 0.6.6
- 0.6.7
- 0.6.8
- 0.6.9
- 0.6.10
- 0.7.1
- 0.7.6
- 1.0.0
- 1.0.1
- 1.0.2
- 1.0.3
- 1.1.0
- 1.1.1
- 1.1.2
- 1.1.3
- 1.1.4
- 1.1.5
- 1.1.6
- 1.1.7
- 1.1.8
- 1.1.9
- 1.1.10
- 1.1.11
- 1.1.12
- 1.1.13
- 1.1.14
- 1.1.15
- 1.1.16
- 1.1.17
- 1.1.18
- 1.1.19
- 1.1.20
- 1.2.0
- 1.2.1
No data.
No Red Hat product state for this CVE.
No package ranges for this CVE.
Remediation
No remediation recorded yet.
Metrics
No CVSS v4.0 score for this CVE.
No CVSS v3.1 score for this CVE.
No CVSS v3.0 score for this CVE.
3.6 LOW NVD
AV:L/AC:L/Au:N/C:N/I:P/A:P
Access Vector Local
Access Complexity Low
Authentication None
Confidentiality Impact None
Integrity Impact Partial
Availability Impact Partial
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
0.37% 0.00367
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
EPSS probability 0.00367
Score over time
2022–2026- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Percentile over time
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Table of values (9 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 0.37% (0.00367) | 28.17th | v5 (v2026.06.15) |
| Jun 15, 2026 | 0.37% (0.00367) | 28.27th | v5 (v2026.06.15) |
| Mar 17, 2025 | 0.05% (0.00047) | 11.59th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.04% (0.00042) | 5.07th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.04% (0.00042) | 5.63th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.28% (0.01282) | 68.34th | v2 (v2022.01.01) |
| Feb 22, 2023 | 1.28% (0.01282) | 68.05th | v2 (v2022.01.01) |
| Apr 1, 2022 | 1.28% (0.01282) | 65.91th | v2 (v2022.01.01) |
| Feb 4, 2022 | 1.28% (0.01282) | 41.72th | v2 (v2022.01.01) |
Weaknesses (1)
References (11)
- http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=626281 x_refsource_CONFIRM
- http://lists.debian.org/debian-security/2011/05/msg00012.html mailing-listx_refsource_MLIST
- http://lists.debian.org/debian-security/2011/05/msg00013.html mailing-listx_refsource_MLIST
- http://lists.debian.org/debian-security/2011/05/msg00018.html mailing-listx_refsource_MLIST
- http://openwall.com/lists/oss-security/2011/05/10/5 mailing-listx_refsource_MLIST
- http://openwall.com/lists/oss-security/2011/05/16/7 mailing-listx_refsource_MLIST
- http://secunia.com/advisories/44460 third-party-advisoryx_refsource_SECUNIAVendor Advisory
- http://www.osvdb.org/72380 vdb-entryx_refsource_OSVDB
- http://www.securityfocus.com/bid/47859 vdb-entryx_refsource_BID
- https://bugzilla.redhat.com/show_bug.cgi?id=704039 x_refsource_CONFIRM
- https://exchange.xforce.ibmcloud.com/vulnerabilities/67477 vdb-entryx_refsource_XF
| Link | Providers | Tags |
|---|---|---|
| http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=626281 | x_refsource_CONFIRM | |
| http://lists.debian.org/debian-security/2011/05/msg00012.html | mailing-listx_refsource_MLIST | |
| http://lists.debian.org/debian-security/2011/05/msg00013.html | mailing-listx_refsource_MLIST | |
| http://lists.debian.org/debian-security/2011/05/msg00018.html | mailing-listx_refsource_MLIST | |
| http://openwall.com/lists/oss-security/2011/05/10/5 | mailing-listx_refsource_MLIST | |
| http://openwall.com/lists/oss-security/2011/05/16/7 | mailing-listx_refsource_MLIST | |
| http://secunia.com/advisories/44460 | third-party-advisoryx_refsource_SECUNIAVendor Advisory | |
| http://www.osvdb.org/72380 | vdb-entryx_refsource_OSVDB | |
| http://www.securityfocus.com/bid/47859 | vdb-entryx_refsource_BID | |
| https://bugzilla.redhat.com/show_bug.cgi?id=704039 | x_refsource_CONFIRM | |
| https://exchange.xforce.ibmcloud.com/vulnerabilities/67477 | vdb-entryx_refsource_XF |
Change history (0)
No recorded changes yet.
Sources
CVE.org / MITRE
Status PUBLISHED
Assigner redhat
Published May 20, 2011
Updated Aug 6, 2024
Reserved Apr 19, 2011
Link CVE-2011-1784
CISA Vulnrichment
Updated n/a