CVE-2018-6556 Detail

Current 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.


View Analysis Description

Severity



CVSS 3.x Severity and Metrics:

NIST CVSS score
NIST: NVD
Base Score:  3.3 LOW
Vector:  CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N


NVD Analysts use publicly available information to associate vector strings and CVSS scores. We also display any CVSS information provided within the CVE List from the CNA.

Note: NVD Analysts have published a CVSS score for this CVE based on publicly available information at the time of analysis. The CNA has not provided a score within the CVE List.

References to Advisories, Solutions, and Tools

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Hyperlink 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 

Weakness Enumeration

CWE-ID CWE Name Source
CWE-417 Communication Channel Errors cwe source acceptance level NIST  

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Change History

7 change records found show changes

Quick Info

CVE Dictionary Entry:
CVE-2018-6556
NVD Published Date:
08/10/2018
NVD Last Modified:
05/31/2019
Source:
MITRE