Summary
It was discovered that a race condition existed in the Serial Attached SCSI
(SAS) implementation in the Linux kernel. A local attacker could possibly
use this to cause a denial of service (system crash) or execute arbitrary
code. (CVE-2018-20836)
It was discovered that the ext4 file system implementation in the Linux
kernel did not properly zero out memory in some situations. A local
attacker could use this to expose sensitive information (kernel memory).
(CVE-2019-11833)
It was discovered that the Bluetooth Human Interface Device Protocol (HIDP)
implementation in the Linux kernel did not properly verify strings were
NULL terminated in certain situations. A local attacker could use this to
expose sensitive information (kernel memory). (CVE-2019-11884)
It was discovered that the Linux kernel on ARM processors allowed a tracing
process to modify a syscall after a seccomp decision had been made on that
syscall. A local attacker could possibly use this to bypass seccomp
restrictions. (CVE-2019-2054)
Hugues Anguelkov discovered that the Broadcom Wifi driver in the Linux
kernel did not properly prevent remote firmware events from being processed
for USB Wifi devices. A physically proximate attacker could use this to
send firmware events to the device. (CVE-2019-9503)
It was discovered that an integer overflow existed in the Freescale
(PowerPC) hypervisor manager in the Linux kernel. A local attacker with
write access to /dev/fsl-hv could use this to cause a denial of service
(system crash) or possibly execute arbitrary code. (CVE-2019-10142)
Fixed packages 4
| Release | Package | Fixed in |
|---|---|---|
| Ubuntu · 16.04 LTS 16.04:LTS | linux | 4.4.0-157.185 |
| Ubuntu · 16.04 LTS 16.04:LTS | linux-aws | 4.4.0-1088.99 |
| Ubuntu · 16.04 LTS 16.04:LTS | linux-kvm | 4.4.0-1052.59 |
| Ubuntu · 16.04 LTS 16.04:LTS | linux-raspi2 | 4.4.0-1117.126 |
Vulnerabilities 6
-
High 7.9
Broadcom brcmfmac driver is vulnerable to a frame validation bypass
The Broadcom brcmfmac WiFi driver prior to commit a4176ec356c73a46c07c181c6d04039fafa34a9f is vulnerable to a frame validation bypass. If the brcmfmac driver receives a firmware event frame from a remote source, the is_wlc_event_frame function will cause this…
-
High 7.1
A flaw was found in the Linux kernel's freescale hypervisor manager implementation, kernel versions 5.0.x up to, exclud…
-
Unscored —
An issue was discovered in the Linux kernel before 4.20. There is a race condition in smp_task_timedout() and smp_task_…
-
Unscored —
fs/ext4/extents.c in the Linux kernel through 5.1.2 does not zero out the unused memory region in the extent tree block…
-
Unscored —
The do_hidp_sock_ioctl function in net/bluetooth/hidp/sock.c in the Linux kernel before 5.0.15 allows a local user to o…
-
Unscored —
In the seccomp implementation prior to kernel version 4.8, there is a possible seccomp bypass due to seccomp policies t…