Summary
Anthony Perard discovered that the Xen virtual block driver did not
properly initialize some data structures before passing them to user space.
A local attacker in a guest VM could use this to expose sensitive
information from the host OS or other guest VMs. (CVE-2017-10911)
Bo Zhang discovered that the netlink wireless configuration interface in
the Linux kernel did not properly validate attributes when handling certain
requests. A local attacker with the CAP_NET_ADMIN could use this to cause a
denial of service (system crash). (CVE-2017-12153)
It was discovered that the nested KVM implementation in the Linux
kernel in some situations did not properly prevent second level guests
from reading and writing the hardware CR8 register. A local attacker
in a guest could use this to cause a denial of service (system crash).
It was discovered that the key management subsystem in the Linux kernel
did not properly restrict key reads on negatively instantiated keys. A
local attacker could use this to cause a denial of service (system crash).
(CVE-2017-12192)
It was discovered that an integer overflow existed in the sysfs interface
for the QLogic 24xx+ series SCSI driver in the Linux kernel. A local
privileged attacker could use this to cause a denial of service (system
crash). (CVE-2017-14051)
It was discovered that the ATI Radeon framebuffer driver in the Linux
kernel did not properly initialize a data structure returned to user space.
A local attacker could use this to expose sensitive information (kernel
memory). (CVE-2017-14156)
Dave Chinner discovered that the XFS filesystem did not enforce that the
realtime inode flag was settable only on filesystems on a realtime device.
A local attacker could use this to cause a denial of service (system
crash). (CVE-2017-14340)
ChunYu Wang discovered that the iSCSI transport implementation in the Linux
kernel did not properly validate data structures. A local attacker could
use this to cause a denial of service (system crash). (CVE-2017-14489)
It was discovered that the generic SCSI driver in the Linux kernel did not
properly initialize data returned to user space in some situations. A local
attacker could use this to expose sensitive information (kernel memory).
(CVE-2017-14991)
Dmitry Vyukov discovered that the Floating Point Unit (fpu) subsystem in
the Linux kernel did not properly handle attempts to set reserved bits in a
task's extended state (xstate) area. A local attacker could use this to
cause a denial of service (system crash). (CVE-2017-15537)
Pengfei Wang discovered that the Turtle Beach MultiSound audio device
driver in the Linux kernel contained race conditions when fetching
from the ring-buffer. A local attacker could use this to cause a
denial of service (infinite loop). (CVE-2017-9984, CVE-2017-9985)
Fixed packages 6
| Release | Package | Fixed in |
|---|---|---|
| Ubuntu · 16.04 LTS 16.04:LTS | linux | 4.4.0-98.121 |
| Ubuntu · 16.04 LTS 16.04:LTS | linux-aws | 4.4.0-1039.48 |
| Ubuntu · 16.04 LTS 16.04:LTS | linux-gke | 4.4.0-1033.33 |
| Ubuntu · 16.04 LTS 16.04:LTS | linux-kvm | 4.4.0-1009.14 |
| Ubuntu · 16.04 LTS 16.04:LTS | linux-raspi2 | 4.4.0-1076.84 |
| Ubuntu · 16.04 LTS 16.04:LTS | linux-snapdragon | 4.4.0-1078.83 |
Vulnerabilities 12
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Unscored —
The make_response function in drivers/block/xen-blkback/blkback.c in the Linux kernel before 4.11.8 allows guest OS use…
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Unscored —
A security flaw was discovered in the nl80211_set_rekey_data() function in net/wireless/nl80211.c in the Linux kernel t…
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Unscored —
The prepare_vmcs02 function in arch/x86/kvm/vmx.c in the Linux kernel through 4.13.3 does not ensure that the "CR8-load…
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Unscored —
The keyctl_read_key function in security/keys/keyctl.c in the Key Management subcomponent in the Linux kernel before 4.…
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Unscored —
An integer overflow in the qla2x00_sysfs_write_optrom_ctl function in drivers/scsi/qla2xxx/qla_attr.c in the Linux kern…
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Unscored —
The atyfb_ioctl function in drivers/video/fbdev/aty/atyfb_base.c in the Linux kernel through 4.12.10 does not initializ…
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Unscored —
The XFS_IS_REALTIME_INODE macro in fs/xfs/xfs_linux.h in the Linux kernel before 4.13.2 does not verify that a filesyst…
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Unscored —CVE-2017-14489 Public exploit
The iscsi_if_rx function in drivers/scsi/scsi_transport_iscsi.c in the Linux kernel through 4.13.2 allows local users t…
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Unscored —
The sg_ioctl function in drivers/scsi/sg.c in the Linux kernel before 4.13.4 allows local users to obtain sensitive inf…
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Unscored —
The x86/fpu (Floating Point Unit) subsystem in the Linux kernel before 4.13.5, when a processor supports the xsave feat…
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Unscored —
The snd_msnd_interrupt function in sound/isa/msnd/msnd_pinnacle.c in the Linux kernel through 4.11.7 allows local users…
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Unscored —
The snd_msndmidi_input_read function in sound/isa/msnd/msnd_midi.c in the Linux kernel through 4.11.7 allows local user…
References
-
report
https://ubuntu.com/security/CVE-2017-9984
-
report
https://ubuntu.com/security/CVE-2017-9985
-
report
https://ubuntu.com/security/CVE-2017-10911
-
report
https://ubuntu.com/security/CVE-2017-12153
-
report
https://ubuntu.com/security/CVE-2017-12154
-
report
https://ubuntu.com/security/CVE-2017-12192
-
report
https://ubuntu.com/security/CVE-2017-14051
-
report
https://ubuntu.com/security/CVE-2017-14156
-
report
https://ubuntu.com/security/CVE-2017-14340
-
report
https://ubuntu.com/security/CVE-2017-14489
-
report
https://ubuntu.com/security/CVE-2017-14991
-
report
https://ubuntu.com/security/CVE-2017-15537