High severity · published Feb 23, 2018
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…
7.8
CVSS
0.3%
EPSS
No
On KEV
Description
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 vector
CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Attack vector
Local
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.3% · higher than 25% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
DL
Debian Linux · Debian
8.0; 9.0 · source: NVD
EL
Enterprise Linux Desktop · Redhat
7.0 · source: NVD
EL
Enterprise Linux Server · Redhat
7.0 · source: NVD
EL
Enterprise Linux Workstation · Redhat
7.0 · source: NVD
LI
Libvirt · Redhat
All versions, or not specified · source: NVD
UL
Ubuntu Linux · Canonical
14.04; 16.04; 17.10 · source: NVD
VI
Virtualization · Redhat
4.0 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2018-6764
CVE.org
https://www.cve.org/CVERecord?id=CVE-2018-6764
Third Party Advisory
http://www.ubuntu.com/usn/USN-3576-1
Third Party Advisory
https://access.redhat.com/errata/RHSA-2018:3113
Third Party Advisory
https://www.debian.org/security/2018/dsa-4137
Patch
https://www.redhat.com/archives/libvir-list/2018-February/msg00239.html
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