| Summary: | The remote host is missing an update for the 'linux, linux-aws, linux-aws-hwe, linux-azure, linux-dell300x, linux-gcp, linux-gcp-4.15, linux-hwe, linux-kvm, linux-oracle, linux-raspi2, linux-snapdragon' package(s) announced via the USN-5268-1 advisory. |
| Description: | Summary:
The remote host is missing an update for the 'linux, linux-aws, linux-aws-hwe, linux-azure, linux-dell300x, linux-gcp, linux-gcp-4.15, linux-hwe, linux-kvm, linux-oracle, linux-raspi2, linux-snapdragon' package(s) announced via the USN-5268-1 advisory.
Vulnerability Insight:
Keyu Man discovered that the ICMP implementation in the Linux kernel did
not properly handle received ICMP error packets. A remote attacker could
use this to facilitate attacks on UDP based services that depend on source
port randomization. (CVE-2021-20322)
It was discovered that the Bluetooth subsystem in the Linux kernel
contained a use-after-free vulnerability. A local attacker could use this
to cause a denial of service (system crash) or possibly execute arbitrary
code. (CVE-2021-3640)
Likang Luo discovered that a race condition existed in the Bluetooth
subsystem of the Linux kernel, leading to a use-after-free vulnerability. A
local attacker could use this to cause a denial of service (system crash)
or possibly execute arbitrary code. (CVE-2021-3752)
Luo Likang discovered that the FireDTV Firewire driver in the Linux kernel
did not properly perform bounds checking in some situations. A local
attacker could use this to cause a denial of service (system crash) or
possibly execute arbitrary code. (CVE-2021-42739)
Affected Software/OS:
'linux, linux-aws, linux-aws-hwe, linux-azure, linux-dell300x, linux-gcp, linux-gcp-4.15, linux-hwe, linux-kvm, linux-oracle, linux-raspi2, linux-snapdragon' package(s) on Ubuntu 14.04, Ubuntu 16.04, Ubuntu 18.04.
Solution:
Please install the updated package(s).
CVSS Score:
7.9
CVSS Vector:
AV:A/AC:M/Au:N/C:C/I:C/A:C
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