UBUNTU-CVE-2018-12027

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Source
https://ubuntu.com/security/CVE-2018-12027
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2018/UBUNTU-CVE-2018-12027.json
JSON Data
https://api.osv.dev/v1/vulns/UBUNTU-CVE-2018-12027
Upstream
Withdrawn
2025-07-18T16:44:37Z
Published
2018-06-17T20:29:00Z
Modified
2025-07-16T08:13:45.017047Z
Severity
  • 8.8 (High) CVSS_V3 - CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H CVSS Calculator
  • Ubuntu - medium
Summary
[none]
Details

An Insecure Permissions vulnerability in SpawningKit in Phusion Passenger 5.3.x before 5.3.2 causes information disclosure in the following situation: given a Passenger-spawned application process that reports that it listens on a certain Unix domain socket, if any of the parent directories of said socket are writable by a normal user that is not the application's user, then that non-application user can swap that directory with something else, resulting in traffic being redirected to a non-application user's process through an alternative Unix domain socket.

References

Affected packages

Ubuntu:22.04:LTS / passenger

Package

Name
passenger
Purl
pkg:deb/ubuntu/passenger@6.0.10-3build1?arch=source&distro=jammy

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
6.0.10-3build1

Affected versions

5.*

5.0.30-1.2

6.*

6.0.10-3

Ecosystem specific 

{
    "availability": "No subscription required",
    "binaries": [
        {
            "binary_version": "6.0.10-3build1",
            "binary_name": "libapache2-mod-passenger"
        },
        {
            "binary_version": "6.0.10-3build1",
            "binary_name": "libapache2-mod-passenger-dbgsym"
        },
        {
            "binary_version": "6.0.10-3build1",
            "binary_name": "passenger"
        },
        {
            "binary_version": "6.0.10-3build1",
            "binary_name": "passenger-dbgsym"
        }
    ]
}