Debian LTS Advisory ([SECURITY] [DLA 1927-1] qemu security update)

Published: 2019-09-21 02:00:23
CVE Author: NIST National Vulnerability Database

CVSS Base Vector:
AV:N/AC:L/Au:S/C:P/I:P/A:P

Summary:
The remote host is missing an update for the 'qemu' Linux Distribution Package(s) announced via the DSA-1927-1 advisory.

Detection Method:
Checks if a vulnerable Linux Distribution Package version is present on the target host.

Technical Details:
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 Versions:
'qemu' Linux Distribution Package(s) on Debian Linux.

Recommendations:
For Debian 8 'Jessie', these problems have been fixed in version 1:2.1+dfsg-12+deb8u12. We recommend that you upgrade your qemu Linux Distribution Packages.

Solution Type:
Vendor Patch

Detection Type:
Linux Distribution Package

NIST (National Institute of Standards and Technology) NVD (National Vulnerability Database)

https://nvd.nist.gov/vuln/detail/CVE-2016-5126
https://nvd.nist.gov/vuln/detail/CVE-2016-5403
https://nvd.nist.gov/vuln/detail/CVE-2017-9375
https://nvd.nist.gov/vuln/detail/CVE-2019-12068
https://nvd.nist.gov/vuln/detail/CVE-2019-12155
https://nvd.nist.gov/vuln/detail/CVE-2019-13164
https://nvd.nist.gov/vuln/detail/CVE-2019-14378
https://nvd.nist.gov/vuln/detail/CVE-2019-15890

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

Severity
Medium
CVSS Score
6.5
Published
2019-09-21
Modified
2019-09-21
Category
Debian Local Security Checks

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