Summary
Relay_open in kernel/relay.c in the Linux kernel through 5.4.1 allows local
users to cause a denial of service (such as relay blockage) by triggering a
NULL alloc_percpu result. (CVE-2019-19462)
Fan Yang discovered that the mremap implementation in the Linux kernel did
not properly handle DAX Huge Pages. A local attacker with access to DAX
storage could use this to gain administrative privileges. (CVE-2020-10757)
It was discovered that the DesignWare SPI controller driver in the Linux
kernel contained a race condition. A local attacker could possibly use this
to cause a denial of service (system crash). (CVE-2020-12769)
In the Linux kernel before 5.4.16, a race condition in tty->disc_data
handling in the slip and slcan line discipline could lead to a
use-after-free, aka CID-0ace17d56824. This affects drivers/net/slip/slip.c
and drivers/net/can/slcan.c. (CVE-2020-14416)
Fixed packages 9
| Release | Package | Fixed in |
|---|---|---|
| Ubuntu · Pro 16.04 LTS Pro:16.04:LTS | linux | 4.4.0-184.214 |
| Ubuntu · Pro 16.04 LTS Pro:16.04:LTS | linux-aws | 4.4.0-1109.120 |
| Ubuntu · Pro 18.04 LTS Pro:18.04:LTS | linux | 4.15.0-112.113 |
| Ubuntu · Pro 18.04 LTS Pro:18.04:LTS | linux-aws | 4.15.0-1079.83 |
| Ubuntu · Pro 18.04 LTS Pro:18.04:LTS | linux-oem | 4.15.0-1093.103 |
| Ubuntu · Pro 20.04 LTS Pro:20.04:LTS | linux | 5.4.0-45.49 |
| Ubuntu · Pro 20.04 LTS Pro:20.04:LTS | linux-aws | 5.4.0-1022.22 |
| Ubuntu · Pro 20.04 LTS Pro:20.04:LTS | linux-azure | 5.4.0-1023.23 |
| Ubuntu · Pro 20.04 LTS Pro:20.04:LTS | linux-gcp | 5.4.0-1022.22 |
Vulnerabilities 3
-
Unscored —CVE-2020-10757 Public exploit
A flaw was found in the Linux Kernel in versions after 4.5-rc1 in the way mremap handled DAX Huge Pages. This flaw allo…
-
Unscored —
An issue was discovered in the Linux kernel before 5.4.17. drivers/spi/spi-dw.c allows attackers to cause a panic via c…
-
Unscored —
In the Linux kernel before 5.4.16, a race condition in tty->disc_data handling in the slip and slcan line discipline co…