libvirt: improperly mapped source privileged ports may allow for obtaining privileged resources on the host

Red Hat libvirt 0.2.0 through 0.8.2 creates iptables rules with improper mappings of privileged source ports, which allows guest OS users to bypass intended access restrictions by leveraging IP address and source-port values, as demonstrated by copying and deleting an NFS directory tree...

Low: Red Hat Security Advisory: libvirt security and bug fix update

Updated libvirt packages that fix two security issues and three bugs are now available for Red Hat Enterprise Linux 5. The Red Hat Security Response Team has rated this update as having low security impact. Common Vulnerability Scoring System CVSS base scores, which give detailed severity ratings...

Fedora 12 : libvirt-0.8.2-1.fc12 (2010-11021)

A reboot is required to update the iptables rules for the default virtual network to address the CVE-2010-2242 All disk format probing is now disabled in a default installation of libvirt. This change may prevent KVM guests using qcow2 disks from booting successfully. If this occurs verify that t...

Fedora 13 : libvirt-0.8.2-1.fc13 (2010-10960)

A reboot is required to update the iptables rules for the default virtual network to address the CVE-2010-2242 All disk format probing is now disabled in a default installation of libvirt. This change may prevent KVM guests using qcow2 disks from booting successfully. If this occurs verify that t...

Remote DoS vulnerability in Linux kernel 2.6.x

Overview ----------- There is a remotely exploitable bug in all Linux kernel 2.6 series due to using incorrect variable type. Vulnerability is connected to netfilter subsystem and may cause DoS. It's disclosed only when using iptables with rules matching TCP options i.e. --tcp-option. There is...

CVE-2003-0080

The iptables ruleset in Gnome-lokkit in Red Hat Linux 8.0 does not include any rules in the FORWARD chain, which could allow attackers to bypass intended access restrictions if packet forwarding is enabled...