CVE-2018-6764

util/virlog.c in libvirt does not properly determine the hostname on LXC container startup, which allows local guest OS users to bypass an intended container protection mechanism and execute arbitrary commands via a crafted NSS module.

CVSS v3.0 7.8 HIGH
CVSS v2.0 4.6 MEDIUM

7.8^/10

CVSS v3.0 : HIGH

Vector : AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Exploitability : 1.8 / Impact : 5.9

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

4.6^/10

CVSS v2.0 : MEDIUM

Vector : AV:L/AC:L/Au:N/C:P/I:P/A:P

Exploitability : 3.9 / Impact : 6.4

Access Vector LOCAL

Access Complexity LOW

Authentication NONE

Confidentiality Impact PARTIAL

Integrity Impact PARTIAL

Availability Impact PARTIAL

References

Link	Resource
https://www.redhat.com/archives/libvir-list/2018-February/msg00239.html	Patch Third Party Advisory
http://www.ubuntu.com/usn/USN-3576-1	Third Party Advisory
https://www.debian.org/security/2018/dsa-4137	Third Party Advisory
https://access.redhat.com/errata/RHSA-2018:3113	Third Party Advisory

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Configurations

Configuration 1 (hide)

cpe:2.3:a:redhat:libvirt:-:*:*:*:*:*:*:*

Configuration 2 (hide)

OR	cpe:2.3:o:debian:debian_linux:8.0:::::::*
	cpe:2.3:o:debian:debian_linux:9.0:::::::*

Configuration 3 (hide)

OR	cpe:2.3:o:redhat:enterprise_linux_server:7.0:::::::*
	cpe:2.3:o:redhat:enterprise_linux_workstation:7.0:::::::*
	cpe:2.3:a:redhat:virtualization:4.0:::::::*
	cpe:2.3:o:redhat:enterprise_linux_desktop:7.0:::::::*

Configuration 4 (hide)

OR	cpe:2.3:o:canonical:ubuntu_linux:14.04::::lts:::
	cpe:2.3:o:canonical:ubuntu_linux:16.04::::lts:::
	cpe:2.3:o:canonical:ubuntu_linux:17.10:::::::*

Information

Published : 2018-02-23 09:29

Updated : 2019-10-02 17:03

NVD link : CVE-2018-6764

Mitre link : CVE-2018-6764

JSON object : View

CWE

CWE-346

Origin Validation Error

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Products Affected

redhat

enterprise_linux_desktop
enterprise_linux_workstation
virtualization
libvirt
enterprise_linux_server

canonical

ubuntu_linux

debian

debian_linux

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