VulnerabilityModified
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, which might allow remote attackers to bypass intended access restrictions…
MEDIUM 5.9EPSS 1.78%
Does this matter?
Lower severity and a low EPSS score (1.78%). Track it; it rarely justifies an emergency change on its own.
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 3.0
- 5.9 MEDIUMCVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N
- EPSS
- 1.78% probability · 77th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-284
- Affected
- canonical/ubuntu linux · redhat/libvirt
- Source
- secalert@redhat.com
References
- http://libvirt.org/git/?p=libvirt.git%3Ba=commitdiff%3Bh=ae1232b298323dd7bef909426e2ebafa6bca9157
- 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=ae1232b298323dd7bef909426e2ebafa6bca9157
- http://libvirt.org/news-2012.htmlVendor Advisory
- http://www.ubuntu.com/usn/USN-2867-1
- https://bugzilla.redhat.com/show_bug.cgi?id=760442
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.