Qemu emulator built with the Human Monitor Interface(HMP) support is vulnerable to an OOB write issue. It occurs while processing 'sendkey' command in hmp_sendkey routine, if the command argument is longer than the 'keyname_buf' buffer size. A user/process could use this flaw to crash the Qemu process instance resulting in DoS. Upstream fix: ------------- -> https://lists.gnu.org/archive/html/qemu-devel/2016-01/msg02160.html Reference: ---------- -> http://www.openwall.com/lists/oss-security/2015/12/23/1
Created qemu tracking bugs for this issue: Affects: fedora-all [bug 1292757] Affects: epel-all [bug 1292758]
Statement: This issue does not affect the versions of the kvm and xen packages as shipped with Red Hat Enterprise Linux 5. This issue does not affect the versions of the qemu-kvm packages as shipped with Red Hat Enterprise Linux 6, and the Red Hat Enterprise Linux 6 based versions of qemu-kvm-rhev packages as shipped with Red Hat Enterprise Virtualization 3. This issue does not affect the versions of the qemu-kvm packages as shipped with Red Hat Enterprise Linux 7. 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/.
qemu-2.4.1-7.fc23 has been pushed to the Fedora 23 stable repository. If problems still persist, please make note of it in this bug report.
qemu-2.3.1-12.fc22 has been pushed to the Fedora 22 stable repository. If problems still persist, please make note of it in this bug report.