USN-3816-3

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Source
https://ubuntu.com/security/notices/USN-3816-3
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-3816-3.json
JSON Data
https://api.osv.dev/v1/vulns/USN-3816-3
Published
2018-11-27T19:18:44Z
Modified
2026-02-10T04:41:26Z
Summary
systemd regression
Details

USN-3816-1 fixed vulnerabilities in systemd. The fix for CVE-2018-6954 caused a regression in systemd-tmpfiles when running Ubuntu inside a container on some older kernels. This issue only affected Ubuntu 16.04 LTS. In order to continue to support this configuration, the fixes for CVE-2018-6954 have been reverted.

We apologize for the inconvenience.

Original advisory details:

Jann Horn discovered that unit_deserialize incorrectly handled status messages above a certain length. A local attacker could potentially exploit this via NotifyAccess to inject arbitrary state across re-execution and obtain root privileges. (CVE-2018-15686)

Jann Horn discovered a race condition in chown_one(). A local attacker could potentially exploit this by setting arbitrary permissions on certain files to obtain root privileges. This issue only affected Ubuntu 18.04 LTS and Ubuntu 18.10. (CVE-2018-15687)

It was discovered that systemd-tmpfiles mishandled symlinks in non-terminal path components. A local attacker could potentially exploit this by gaining ownership of certain files to obtain root privileges. This issue only affected Ubuntu 16.04 LTS and Ubuntu 18.04 LTS. (CVE-2018-6954)

References

Affected packages

Ubuntu:16.04:LTS / systemd

Package

Name
systemd
Purl
pkg:deb/ubuntu/systemd@229-4ubuntu21.10?arch=source&distro=xenial

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
229-4ubuntu21.10

Affected versions

Other
225-1ubuntu9
227-2ubuntu1
227-2ubuntu2
228-1ubuntu2
228-2ubuntu1
228-2ubuntu2
228-3ubuntu1
228-4ubuntu1
228-4ubuntu2
228-5ubuntu1
228-5ubuntu2
228-5ubuntu3
228-6ubuntu1
229-1ubuntu2
229-1ubuntu4
229-2ubuntu1
229-3ubuntu1
229-3ubuntu2
229-4ubuntu1
229-4ubuntu4
229-4ubuntu5
229-4ubuntu6
229-4ubuntu7
229-4ubuntu8
229-4ubuntu10
229-4ubuntu11
229-4ubuntu12
229-4ubuntu13
229-4ubuntu16
229-4ubuntu17
229-4ubuntu19
229-4ubuntu20
229-4ubuntu21
229-4ubuntu21.*
229-4ubuntu21.1
229-4ubuntu21.2
229-4ubuntu21.3
229-4ubuntu21.4
229-4ubuntu21.5
229-4ubuntu21.6
229-4ubuntu21.8
229-4ubuntu21.9

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "229-4ubuntu21.10",
            "binary_name": "libnss-myhostname"
        },
        {
            "binary_version": "229-4ubuntu21.10",
            "binary_name": "libnss-mymachines"
        },
        {
            "binary_version": "229-4ubuntu21.10",
            "binary_name": "libnss-resolve"
        },
        {
            "binary_version": "229-4ubuntu21.10",
            "binary_name": "libpam-systemd"
        },
        {
            "binary_version": "229-4ubuntu21.10",
            "binary_name": "libsystemd-dev"
        },
        {
            "binary_version": "229-4ubuntu21.10",
            "binary_name": "libsystemd0"
        },
        {
            "binary_version": "229-4ubuntu21.10",
            "binary_name": "libudev-dev"
        },
        {
            "binary_version": "229-4ubuntu21.10",
            "binary_name": "libudev1"
        },
        {
            "binary_version": "229-4ubuntu21.10",
            "binary_name": "systemd"
        },
        {
            "binary_version": "229-4ubuntu21.10",
            "binary_name": "systemd-container"
        },
        {
            "binary_version": "229-4ubuntu21.10",
            "binary_name": "systemd-coredump"
        },
        {
            "binary_version": "229-4ubuntu21.10",
            "binary_name": "systemd-journal-remote"
        },
        {
            "binary_version": "229-4ubuntu21.10",
            "binary_name": "systemd-sysv"
        },
        {
            "binary_version": "229-4ubuntu21.10",
            "binary_name": "udev"
        }
    ],
    "availability": "No subscription required"
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-3816-3.json"
cves_map 
{
    "ecosystem": "Ubuntu:16.04:LTS",
    "cves": []
}