qemu-kvm-0.12.1.2-2.506.AXS4.5

Kernel-based Virtual Machine (KVM) is a full virtualization solution for Linux on a variety of architectures. The qemu-kvm packages provide the user-space component for running virtual machines that use KVM.

Security Fix(es):

* QEMU: slirp: heap buffer overflow while reassembling fragmented datagrams (CVE-2018-11806)

* QEMU: slirp: heap buffer overflow in tcp_emu() (CVE-2019-6778)

* QEMU: ne2000: integer overflow leads to buffer overflow issue (CVE-2018-10839)

* QEMU: pcnet: integer overflow leads to buffer overflow (CVE-2018-17962)

* QEMU: qxl: null pointer dereference while releasing spice resources (CVE-2019-12155)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

CVE-2018-10839
Qemu emulator <= 3.0.0 built with the NE2000 NIC emulation support is vulnerable to an integer overflow, which could lead to buffer overflow issue. It could occur when receiving packets over the network. A user inside guest could use this flaw to crash the Qemu process resulting in DoS.
CVE-2018-11806
m_cat in slirp/mbuf.c in Qemu has a heap-based buffer overflow via incoming fragmented datagrams.
CVE-2018-17962
Qemu has a Buffer Overflow in pcnet_receive in hw/net/pcnet.c because an incorrect integer data type is used.
CVE-2019-12155
interface_release_resource in hw/display/qxl.c in QEMU 4.0.0 has a NULL pointer dereference.
CVE-2019-6778
In QEMU 3.0.0, tcp_emu in slirp/tcp_subr.c has a heap-based buffer overflow.