Vulnerability in Canonical Ubuntu Linux
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 via a (1) DNS or (2) DHCP query.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.9 (Medium). Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N.
EPSS exploit prediction
EPSS: 0.018 (77.4th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 77th percentile — 77.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.018 · newest: 0.018 · change: 0.000
Affected products
- Canonical Ubuntu Linux — versions 12.04, 14.04, 15.04
- Red Hat Libvirt — versions 0.9.8
Weakness classification (CWE)
References
- libvirt.org/news-2012.html (Vendor Advisory)
- libvirt.org/git/
- bugzilla.redhat.com/show_bug.cgi
- www.ubuntu.com/usn/USN-2867-1 (vendor-advisory)
Frequently asked questions
- What is CVE-2011-4600?
- CVE-2011-4600 is a medium-severity vulnerability in Canonical Ubuntu Linux, classified under Improper Access Control. CVSS score: 5.9/10. Published 2016-04-14.
- How severe is CVE-2011-4600?
- Medium severity. CVSS v3 base score is 5.9 out of 10.