CVE-2011-4600

5.9 MEDIUM
Published: April 14, 2016 Modified: May 06, 2026
View on NVD

Description

The networkReloadIptablesRules function in network/bridge_driver.c in libvirt before 0.9.9 does not properly handle firewall rules on bridge networks when libvirtd is restarted, which might allow remote attackers to bypass intended access restrictions via a (1) DNS or (2) DHCP query.

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CVSS v3.x Details

0.0 Low Medium High Critical 10.0
Vector String
CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N

References to Advisories, Solutions, and Tools

Patch Vendor Advisory Exploit Third Party Advisory
http://libvirt.org/news-2012.html
Source: secalert@redhat.com
Vendor Advisory
http://www.ubuntu.com/usn/USN-2867-1
Source: secalert@redhat.com
http://libvirt.org/news-2012.html
Source: af854a3a-2127-422b-91ae-364da2661108
Vendor Advisory
http://www.ubuntu.com/usn/USN-2867-1
Source: af854a3a-2127-422b-91ae-364da2661108
https://bugzilla.redhat.com/show_bug.cgi?id=760442
Source: af854a3a-2127-422b-91ae-364da2661108

8 reference(s) from NVD

Quick Stats

CVSS v3 Score
5.9 / 10.0
EPSS (Exploit Probability)
0.3%
54th percentile
Exploitation Status
Not in CISA KEV

Weaknesses (CWE)

Affected Vendors

canonical redhat