USN-3816-3
- 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
- 2026-04-22T09:51:56.244901Z
- 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
-
Introduced0Unknown introduced version / All previous versions are affectedFixed229-4ubuntu21.10
Affected versions
Other
229-4ubuntu21.*
Ecosystem specific
{
"binaries": [
{
"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": "libsystemd0",
"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",
"binary_version": "229-4ubuntu21.10"
}
],
"availability": "No subscription required"
}