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.
References
Link | Resource |
---|---|
http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00074.html | Mailing List Third Party Advisory |
http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00076.html | Mailing List Third Party Advisory |
http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00091.html | Mailing List Third Party Advisory |
http://lists.opensuse.org/opensuse-security-announce/2019-05/msg00073.html | |
https://bugs.launchpad.net/ubuntu/+source/lxc/+bug/1783591 | Issue Tracking Third Party Advisory |
https://bugzilla.suse.com/show_bug.cgi?id=988348 | Issue Tracking Patch |
https://security.gentoo.org/glsa/201808-02 | Third Party Advisory |
https://usn.ubuntu.com/usn/usn-3730-1 | Third Party Advisory |
History
No history.
MITRE Information
Status: PUBLISHED
Assigner: canonical
Published: 2018-08-06T00:00:00
Updated: 2019-05-31T20:06:03
Reserved: 2018-02-02T00:00:00
Link: CVE-2018-6556
JSON object: View
NVD Information
Status : Modified
Published: 2018-08-10T15:29:01.297
Modified: 2019-05-31T21:29:02.000
Link: CVE-2018-6556
JSON object: View
Redhat Information
No data.
CWE