CVE-2011-4600
5.9
MEDIUM
CVSS 3.1
EPSS 0.35%
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.
How to fix CVE-2011-4600
To remediate CVE-2011-4600, upgrade the affected package to a fixed version below.
- Debian/libvirt—upgrade to 0.9.9-1 or later
Is CVE-2011-4600 being exploited?
Low — EPSS is 0.4%, meaning exploitation activity has not been observed at scale.
Affected packages (1)
- from 0, < 0.9.9-1
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | MEDIUM5.9 | CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N |