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Debian LTS Advisory ([SECURITY] [DLA 1927-1] qemu security update)
Information
Severity
Severity
Family
Family
CVSSv2 Base
CVSSv2 Base
CVSSv2 Vector
CVSSv2 Vector
Solution Type
Solution Type
Created
Created
Modified
Modified
Summary
The remote host is missing an update for the 'qemu' package(s) announced via the DSA-1927-1 advisory.
Insight
Insight
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.
Affected Software
Affected Software
'qemu' package(s) on Debian Linux.
Detection Method
Detection Method
Checks if a vulnerable package version is present on the target host.
Solution
Solution
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.
Common Vulnerabilities and Exposures (CVE)
References
- https://lists.debian.org/debian-lts-announce/2019/09/msg00021.html
- https://security-tracker.debian.org/tracker/DLA-1927-1
- https://bugs.debian.org/826151
- https://bugs.debian.org/832619
- https://bugs.debian.org/864219
- https://bugs.debian.org/929353
- https://bugs.debian.org/931351
- https://bugs.debian.org/933741
- https://bugs.debian.org/933742
- https://bugs.debian.org/939868
- https://bugs.debian.org/939869