Vulnerability 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 Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Canonical | Ubuntu Linux | 12.04 |
| Redhat | Libvirt | 0.9.8 |
Related Weaknesses (CWE)
References
- http://libvirt.org/git/?p=libvirt.git%3Ba=commitdiff%3Bh=ae1232b298323dd7bef9094
- http://libvirt.org/news-2012.htmlVendor Advisory
- http://www.ubuntu.com/usn/USN-2867-1
- https://bugzilla.redhat.com/show_bug.cgi?id=760442
- http://libvirt.org/git/?p=libvirt.git%3Ba=commitdiff%3Bh=ae1232b298323dd7bef9094
- http://libvirt.org/news-2012.htmlVendor Advisory
- http://www.ubuntu.com/usn/USN-2867-1
- https://bugzilla.redhat.com/show_bug.cgi?id=760442
FAQ
What is CVE-2011-4600?
CVE-2011-4600 is a vulnerability with a CVSS score of 5.9 (MEDIUM). 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 remo...
How severe is CVE-2011-4600?
CVE-2011-4600 has been rated MEDIUM with a CVSS base score of 5.9/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2011-4600?
Check the references section above for vendor advisories and patch information. Affected products include: Canonical Ubuntu Linux, Redhat Libvirt.