Vulnerability Report

CVE-2018-6556

Title: Linuxcontainers Lxc

Other

Proof Of Concept

No public PoC currently indexed for CVE-2018-6556.

CWE Category CWE-417
Published Date Aug 10, 2018
Modified Date Jun 17, 2026
Exploit Status Not Found
Score 3.3 CVSS v3.0
Exploit Probability (EPSS)
0.35%

Vulnerability Summary

CVE-2018-6556: 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.

Impacted Vendors

L
linuxcontainers 1
S
suse 2
J
jenkins 1

Reference Links

http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00074.html http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00076.html http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00091.html http://lists.opensuse.org/opensuse-security-announce/2019-05/msg00073.html https://bugs.launchpad.net/ubuntu/+source/lxc/+bug/1783591 https://bugzilla.suse.com/show_bug.cgi?id=988348 https://security.gentoo.org/glsa/201808-02 https://usn.ubuntu.com/usn/usn-3730-1 http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00074.html http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00076.html http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00091.html http://lists.opensuse.org/opensuse-security-announce/2019-05/msg00073.html https://bugs.launchpad.net/ubuntu/+source/lxc/+bug/1783591 https://bugzilla.suse.com/show_bug.cgi?id=988348 https://security.gentoo.org/glsa/201808-02 https://usn.ubuntu.com/usn/usn-3730-1
CVSS v3.0
Source Entity [email protected]
Severity LOW
3.3
Attack Vector
LOCAL
Complexity
LOW
Privileges
N/A
Interaction
NONE
Confidentiality
N/A
Integrity
N/A
Availability
N/A
Scope
UNCHANGED
RAW VECTOR CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
CVSS v2.0
Source Entity [email protected]
Severity LOW
2.1
Access Vector
N/A
Authentication
N/A
RAW VECTOR AV:L/AC:L/Au:N/C:P/I:N/A:N

Associated Attack Patterns (CAPEC)

Total: Patterns

CVE-2018-6556 Exploits & PoCs (Proof Of Concept)

No public PoCs found in our database for this CVE.

MODIFIED

Vulnerability data updated via NVD.

MODIFIED

Vulnerability data or affected products updated.

PUBLISHED

Vulnerability first announced in NVD.

Attack Vector Matrix

Access Vector LOCAL
Complexity LOW
Privileges N/A
Interaction NONE
CVSS Vector String CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N

Affected Stack

No specific products linked.