CVE-2018-6556
Summary
| CVE | CVE-2018-6556 |
|---|---|
| State | PUBLIC |
| Assigner | [email protected] |
| Source Priority | CVE Program / NVD first with legacy fallback |
| Published | 2018-08-10 15:29:00 UTC |
| Updated | 2019-05-31 21:29:00 UTC |
| Description | lxc-user-nic when asked to delete a network interface will unconditionally open a user provided path. This code path may be used by an unprivileged user to check for the existence of a path which they wouldn't otherwise be able to reach. It may also be used to trigger side effects by causing a (read-only) open of special kernel files (ptmx, proc, sys). Affected releases are LXC: 2.0 versions above and including 2.0.9; 3.0 versions above and including 3.0.0, prior to 3.0.2. |
Risk And Classification
Problem Types: CWE-417
NVD Known Affected Configurations (CPE 2.3)
| Type | Vendor | Product | Version | Update | Edition | Language |
|---|---|---|---|---|---|---|
| Operating System | Canonical | Ubuntu Linux | 18.04 | All | All | All |
| Operating System | Canonical | Ubuntu Linux | 18.04 | All | All | All |
| Application | Linuxcontainers | Lxc | All | All | All | All |
| Application | Linuxcontainers | Lxc | All | All | All | All |
| Application | Linuxcontainers | Lxc | All | All | All | All |
| Operating System | Opensuse | Leap | 15.0 | All | All | All |
| Operating System | Opensuse | Leap | 15.0 | All | All | All |
| Application | Suse | Caas Platform | 1.0 | All | All | All |
| Application | Suse | Caas Platform | 2.0 | All | All | All |
| Application | Suse | Caas Platform | 1.0 | All | All | All |
| Application | Suse | Caas Platform | 2.0 | All | All | All |
| Application | Suse | Openstack Cloud | 6 | All | All | All |
| Application | Suse | Openstack Cloud | 6 | All | All | All |
| Operating System | Suse | Suse Linux Enterprise Server | 11 | sp3 | All | All |
| Operating System | Suse | Suse Linux Enterprise Server | 11 | sp4 | All | All |
| Operating System | Suse | Suse Linux Enterprise Server | 11 | sp3 | All | All |
| Operating System | Suse | Suse Linux Enterprise Server | 11 | sp4 | All | All |
References
| Reference | Source | Link | Tags |
|---|---|---|---|
| [security-announce] openSUSE-SU-2019:1230-1: moderate: Security update f | SUSE | lists.opensuse.org | Mailing List, Third Party Advisory |
| Bug 988348 – AUDIT-0: CVE-2018-6556: lxc: enable setuid bit on lxc-user-nic | CONFIRM | bugzilla.suse.com | Issue Tracking, Patch |
| USN-3730-1: LXC vulnerability | Ubuntu security notices | Ubuntu | UBUNTU | usn.ubuntu.com | Third Party Advisory |
| LinuX Containers user space utilities: Arbitrary file read (GLSA 201808-02) — Gentoo security | GENTOO | security.gentoo.org | Third Party Advisory |
| [security-announce] openSUSE-SU-2019:1275-1: important: Security update | SUSE | lists.opensuse.org | Mailing List, Third Party Advisory |
| [security-announce] openSUSE-SU-2019:1227-1: important: Security update | SUSE | lists.opensuse.org | Mailing List, Third Party Advisory |
| [security-announce] openSUSE-SU-2019:1481-1: important: Security update | SUSE | lists.opensuse.org | |
| Bug #1783591 “lxc-user-nic allows unprivileged users to open arb...” : Bugs : lxc package : Ubuntu | CONFIRM | bugs.launchpad.net | Issue Tracking, Third Party Advisory |
| CVE Program record | CVE.ORG | www.cve.org | canonical |
| NVD vulnerability detail | NVD | nvd.nist.gov | canonical, analysis |
Vendor Comments And Credit
Discovery Credit
LEGACY: Matthias Gerstner from SUSE