CVE-2011-4600

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.

Category

5.9
CVSS
Severity: Medium
CVSS 3.0 •
CVSS 2.0 •
EPSS 0.20%
Vendor Advisory ubuntu.com Vendor Advisory libvirt.org
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
http://libvirt.org/news-2012.html vendor advisory
http://libvirt.org/git/?p=libvirt.git%3Ba=commitdiff%3Bh=ae1232b298323dd7bef909426e2ebafa6bca9157
https://bugzilla.redhat.com/show_bug.cgi?id=760442
http://www.ubuntu.com/usn/USN-2867-1 vendor advisory

Frequently Asked Questions

What is the severity of CVE-2011-4600?
CVE-2011-4600 has been scored as a medium severity vulnerability.
How to fix CVE-2011-4600?
To fix CVE-2011-4600, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2011-4600 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2011-4600 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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