Synopsis
The remote Debian host is missing a security update.
Description
Several vulnerabilities were found in QEMU, a fast processor emulator (notably used in KVM and Xen HVM virtualization).
CVE-2016-5126
Heap-based buffer overflow in the iscsi_aio_ioctl function in block/iscsi.c in QEMU allows local guest OS users to cause a denial of service (QEMU process crash) or possibly execute arbitrary code via a crafted iSCSI asynchronous I/O ioctl call.
CVE-2016-5403
The virtqueue_pop function in hw/virtio/virtio.c in QEMU allows local guest OS administrators to cause a denial of service (memory consumption and QEMU process crash) by submitting requests without waiting for completion.
CVE-2017-9375
QEMU, when built with USB xHCI controller emulator support, allows local guest OS privileged users to cause a denial of service (infinite recursive call) via vectors involving control transfer descriptors sequencing.
CVE-2019-12068
QEMU scsi disk backend: lsi: exit infinite loop while executing script
CVE-2019-12155
interface_release_resource in hw/display/qxl.c in QEMU has a NULL pointer dereference.
CVE-2019-13164
qemu-bridge-helper.c in QEMU does not ensure that a network interface name (obtained from bridge.conf or a --br=bridge option) is limited to the IFNAMSIZ size, which can lead to an ACL bypass.
CVE-2019-14378
ip_reass in ip_input.c in libslirp 4.0.0 has a heap-based buffer overflow via a large packet because it mishandles a case involving the first fragment.
CVE-2019-15890
libslirp 4.0.0, as used in QEMU, has a use-after-free in ip_reass in ip_input.c.
For Debian 8 'Jessie', these problems have been fixed in version 1:2.1+dfsg-12+deb8u12.
We recommend that you upgrade your qemu packages.
NOTE: Tenable Network Security has extracted the preceding description block directly from the DLA security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.
Solution
Upgrade the affected packages.