Vulmon
Amazon Linux 2 Security Advisory: ALAS-2020-1405
Advisory Release Date: 2020-03-23 16:25 Pacific
Advisory Updated Date: 2020-05-08 18:29 Pacific
Severity:
Important
Issue Overview:
A flaw was found in the way KVM hypervisor handled instruction emulation for the L2 guest when nested(=1) virtualization is enabled. In the instruction emulation, the L2 guest could trick the L0 hypervisor into accessing sensitive bits of the L1 hypervisor. An L2 guest could use this flaw to potentially access information of the L1 hypervisor. (CVE-2020-2732)
There is a use-after-free vulnerability in the Linux kernel through 5.5.2 in the n_tty_receive_buf_common function in drivers/tty/n_tty. (CVE-2020-8648)
Affected Packages:
kernel
Issue Correction:
Run yum update kernel to update your system.
New Packages:
aarch64:
kernel-4.14.173-137.228.amzn2.aarch64
kernel-headers-4.14.173-137.228.amzn2.aarch64
kernel-debuginfo-common-aarch64-4.14.173-137.228.amzn2.aarch64
perf-4.14.173-137.228.amzn2.aarch64
perf-debuginfo-4.14.173-137.228.amzn2.aarch64
python-perf-4.14.173-137.228.amzn2.aarch64
python-perf-debuginfo-4.14.173-137.228.amzn2.aarch64
kernel-tools-4.14.173-137.228.amzn2.aarch64
kernel-tools-devel-4.14.173-137.228.amzn2.aarch64
kernel-tools-debuginfo-4.14.173-137.228.amzn2.aarch64
kernel-devel-4.14.173-137.228.amzn2.aarch64
kernel-debuginfo-4.14.173-137.228.amzn2.aarch64
i686:
kernel-headers-4.14.173-137.228.amzn2.i686
src:
kernel-4.14.173-137.228.amzn2.src
x86_64:
kernel-4.14.173-137.228.amzn2.x86_64
kernel-headers-4.14.173-137.228.amzn2.x86_64
kernel-debuginfo-common-x86_64-4.14.173-137.228.amzn2.x86_64
perf-4.14.173-137.228.amzn2.x86_64
perf-debuginfo-4.14.173-137.228.amzn2.x86_64
python-perf-4.14.173-137.228.amzn2.x86_64
python-perf-debuginfo-4.14.173-137.228.amzn2.x86_64
kernel-tools-4.14.173-137.228.amzn2.x86_64
kernel-tools-devel-4.14.173-137.228.amzn2.x86_64
kernel-tools-debuginfo-4.14.173-137.228.amzn2.x86_64
kernel-devel-4.14.173-137.228.amzn2.x86_64
kernel-debuginfo-4.14.173-137.228.amzn2.x86_64
kernel-livepatch-4.14.173-137.228-1.0-0.amzn2.x86_64