CVE-2011-4600 - Improper Access Control

Severity

43%

Complexity

86%

Confidentiality

48%

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.

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 Base Score 5.9. CVSS Attack Vector: network. CVSS Attack Complexity: high. CVSS Vector: (CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N).

CVSS 2.0 Base Score 4.3. CVSS Attack Vector: network. CVSS Attack Complexity: medium. CVSS Vector: (AV:N/AC:M/Au:N/C:N/I:P/A:N).

Overview

First reported 8 years ago

2016-04-14 15:59:00

Last updated 8 years ago

2016-04-18 18:06:00

Affected Software

Canonical Ubuntu Linux 12.04 LTS

12.04

Canonical Ubuntu Linux 14.04 LTS (Long-Term Support)

14.04

Canonical Ubuntu Linux 15.04

15.04

Canonical Ubuntu Linux 15.10

15.10

Red Hat libvirt 0.9.8

0.9.8

References

http://libvirt.org/git/?p=libvirt.git;a=commitdiff;h=ae1232b298323dd7bef909426e2ebafa6bca9157

Patch

http://libvirt.org/news-2012.html

Vendor Advisory

USN-2867-1

https://bugzilla.redhat.com/show_bug.cgi?id=760442

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