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CVE-2018-6556

The lxc-user-nic component of LXC allows unprivileged users to open arbitrary files

Published: Aug 10, 2018Updated: Nov 21, 2024 Sources: CVE List NVD BDUCWE-417
NVD MITRE
3.3CVSSLOW
EPSS Score
0.3%
Top 73.7%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available

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.

CVSS Vector Breakdown

AV:LAC:LPR:LUI:NS:UC:LI:NA:N
Exploitability
AV:LAttack Vector
Local
AC:LAttack Complexity
Low
PR:LPrivileges Required
Low
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:LConfidentiality
Low
I:NIntegrity
None
A:NAvailability
None
Open in CVSS calculator →

Weaknesses

CWE-417

Affected Products

Debian GNU/LinuxСообщество свободного программного обеспечения
On-premOS
Operating Systems / linux-distro
OpenSUSE LeapNovell Inc.
On-premOS
Operating Systems / linux-distro
UbuntuCanonical Ltd.
On-premOS
Operating Systems / linux-distro
Astra Linux Special EditionООО «РусБИТех-Астра»
On-premOS
Operating Systems / linux-distro
LXCСообщество свободного программного обеспечения
On-prem
Operating Systems / linux-distro
сообщество свободного программного обеспеченияoss-projectOperating Systemsaka сообщество свободного программного обеспечения, fsf
novell inc.commercialUSOperating Systems
canonical ltd.commercialGBOperating Systemsaka canonical
ооо «русбитех-астра»commercialRUOperating Systemsaka rusbitech-astra
and 8 more affected products View all →

Exploitability

Official Patch Available

References

https://www.suse.com/security/cve/CVE-2018-6556/
suse.com
https://usn.ubuntu.com/3730-1/
usn.ubuntu.com
https://nvd.nist.gov/vuln/detail/CVE-2018-6556
nvd.nist.gov
and 11 more references View all →

Timeline

Published
Aug 10, 2018
Last Updated
Nov 21, 2024

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