It was reported that Qemu emulator built with the virtio-serial vmchannel support is vulnerable to a buffer overflow issue. It could occur while exchanging virtio control messages between guest & the host. A malicious guest could use this flaw to corrupt few bytes of Qemu memory area, potentially crashing the Qemu process. Upstream fix: ------------- -> git.qemu.org/?p=qemu.git;a=commit;h=7882080388be5088e72c425b02223c02e6cb4295 Reference: ---------- -> http://seclists.org/oss-sec/2015/q3/302
Created qemu tracking bugs for this issue: Affects: fedora-all [bug 1251160]
Statement: This issue does not affect the versions of kvm and xen packages as shipped with Red Hat Enterprise Linux 5. This issue affects the versions of the qemu-kvm packages as shipped with Red Hat Enterprise Linux 6 and 7. This issue affects the Red Hat Enterprise Linux 6 based versions of qemu-kvm-rhev packages as shipped with Red Hat Enterprise Virtualization 3. This issue affects the Red Hat Enterprise Linux 7 based versions of the qemu-kvm-rhev packages as shipped with Red Hat Enterprise Virtualization 3. This has been rated as having Low security impact and is not currently planned to be addressed in future updates. For additional information, refer to the Red Hat Enterprise Linux Life Cycle: https://access.redhat.com/support/policy/updates/errata/.
Created xen tracking bugs for this issue: Affects: fedora-all [bug 1251354]
qemu-2.3.1-1.fc22 has been pushed to the Fedora 22 stable repository. If problems still persist, please make note of it in this bug report.
qemu-2.4.0-1.fc23 has been pushed to the Fedora 23 stable repository. If problems still persist, please make note of it in this bug report.
qemu-2.1.3-9.fc21 has been pushed to the Fedora 21 stable repository. If problems still persist, please make note of it in this bug report.
xen-4.5.1-9.fc23 has been pushed to the Fedora 23 stable repository. If problems still persist, please make note of it in this bug report.
xen-4.5.1-9.fc22 has been pushed to the Fedora 22 stable repository. If problems still persist, please make note of it in this bug report.
xen-4.4.3-4.fc21 has been pushed to the Fedora 21 stable repository. If problems still persist, please make note of it in this bug report.