s->rx_level is read from the wire and used to determine how many bytes to subsequently read into s->rx_fifo[]. If s->rx_level exceeds the length of s->rx_fifo[] the buffer can be overrun with arbitrary data from the wire. An user able to alter the savevm data (either on the disk or over the wire during migration) could use this flaw to to corrupt QEMU process memory on the (destination) host, which could potentially result in arbitrary code execution on the host with the privileges of the QEMU process. Upstream fix: ------------- -> http://git.qemu.org/?p=qemu.git;a=commit;h=caa881abe0e01f9931125a0977ec33c5343e4aa7
Statement: Not vulnerable. This issue does not affect the versions of kvm package as shipped with Red Hat Enterprise Linux 5. This issue does not affect the versions of qemu-kvm package as shipped with Red Hat Enterprise Linux 6
Created qemu tracking bugs for this issue: Affects: fedora-all [bug 1095767]
qemu-1.6.2-5.fc20 has been pushed to the Fedora 20 stable repository. If problems still persist, please make note of it in this bug report.