ubuntu-cve-2011-1784
Vulnerability from osv_ubuntu
Published
2011-05-20 22:55
Modified
2025-07-16 04:49
Summary
Details

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.

Severity
N/A (UNKNOWN)
low
References
To clipboard 

{
  "affected": [
    {
      "ecosystem_specific": {
        "availability": "No subscription required",
        "binaries": [
          {
            "binary_name": "keepalived",
            "binary_version": "1:1.2.7-1ubuntu1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:14.04:LTS",
        "name": "keepalived",
        "purl": "pkg:deb/ubuntu/keepalived@1:1.2.7-1ubuntu1?arch=source\u0026distro=trusty"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "1:1.2.7-1ubuntu1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": []
    },
    {
      "ecosystem_specific": {
        "availability": "No subscription required",
        "binaries": [
          {
            "binary_name": "keepalived",
            "binary_version": "1:1.2.24-1ubuntu0.16.04.1"
          },
          {
            "binary_name": "keepalived-dbgsym",
            "binary_version": "1:1.2.24-1ubuntu0.16.04.1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:16.04:LTS",
        "name": "keepalived",
        "purl": "pkg:deb/ubuntu/keepalived@1:1.2.24-1ubuntu0.16.04.1?arch=source\u0026distro=xenial"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "1:1.2.24-1ubuntu0.16.04.1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1:1.2.19-1",
        "1:1.2.19-1ubuntu0.1",
        "1:1.2.19-1ubuntu0.2"
      ]
    },
    {
      "ecosystem_specific": {
        "availability": "No subscription required",
        "binaries": [
          {
            "binary_name": "keepalived",
            "binary_version": "1:1.3.9-1ubuntu0.18.04.1"
          },
          {
            "binary_name": "keepalived-dbgsym",
            "binary_version": "1:1.3.9-1ubuntu0.18.04.1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:18.04:LTS",
        "name": "keepalived",
        "purl": "pkg:deb/ubuntu/keepalived@1:1.3.9-1ubuntu0.18.04.1?arch=source\u0026distro=bionic"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "1:1.3.9-1ubuntu0.18.04.1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1:1.3.2-1build1",
        "1:1.3.9-1",
        "1:1.3.9-1build1"
      ]
    }
  ],
  "aliases": [],
  "details": "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.",
  "id": "UBUNTU-CVE-2011-1784",
  "modified": "2025-07-16T04:49:59Z",
  "published": "2011-05-20T22:55:00Z",
  "references": [
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2011-1784"
    },
    {
      "type": "REPORT",
      "url": "http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=626281"
    },
    {
      "type": "REPORT",
      "url": "https://www.cve.org/CVERecord?id=CVE-2011-1784"
    }
  ],
  "related": [],
  "schema_version": "1.7.0",
  "severity": [
    {
      "score": "low",
      "type": "Ubuntu"
    }
  ],
  "upstream": [
    "CVE-2011-1784"
  ],
  "withdrawn": "2025-07-18T16:42:42Z"
}



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