Medium severity · published Apr 14, 2016
CVE-2011-4600
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,…
5.9
CVSS
1.8%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N
Attack vector
Network
Complexity
High
Privileges
None
User interaction
None
Confidentiality
None
Integrity
High
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)1.8% · higher than 78% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
LI
Libvirt · Redhat
0.9.8 · source: NVD
UL
Ubuntu Linux · Canonical
12.04; 14.04; 15.04; 15.10 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2011-4600
CVE.org
https://www.cve.org/CVERecord?id=CVE-2011-4600
libvirt.org
http://libvirt.org/git/?p=libvirt.git%3Ba=commitdiff%3Bh=ae1232b298323dd7bef909426e2ebafa6bca9157
Vendor Advisory
http://libvirt.org/news-2012.html
www.ubuntu.com
http://www.ubuntu.com/usn/USN-2867-1
bugzilla.redhat.com
https://bugzilla.redhat.com/show_bug.cgi?id=760442
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