Amazon Linux 2 Security Advisory: ALASKERNEL-5.4-2022-008
Advisory Release Date: 2022-01-20 19:07 Pacific
Advisory Updated Date: 2022-01-28 17:23 Pacific
A flaw was found in the Linux kernel. When reusing a socket with an attached dccps_hc_tx_ccid as a listener, the socket will be used after being released leading to denial of service (DoS) or a potential code execution. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability. (CVE-2020-16119)
A vulnerability was found in the Linux kernel. Missing size validations on inbound SCTP packets may allow the kernel to read uninitialized memory. (CVE-2021-3655)
Affected Packages:
kernel
Note:
This advisory is applicable to Amazon Linux 2 - Kernel-5.4 Extra. Visit this page to learn more about Amazon Linux 2 (AL2) Extras and this FAQ section for the difference between AL2 Core and AL2 Extras advisories.
Issue Correction:
Run yum update kernel to update your system.
aarch64:
kernel-5.4.144-69.257.amzn2.aarch64
kernel-headers-5.4.144-69.257.amzn2.aarch64
kernel-debuginfo-common-aarch64-5.4.144-69.257.amzn2.aarch64
perf-5.4.144-69.257.amzn2.aarch64
perf-debuginfo-5.4.144-69.257.amzn2.aarch64
python-perf-5.4.144-69.257.amzn2.aarch64
python-perf-debuginfo-5.4.144-69.257.amzn2.aarch64
kernel-tools-5.4.144-69.257.amzn2.aarch64
kernel-tools-devel-5.4.144-69.257.amzn2.aarch64
kernel-tools-debuginfo-5.4.144-69.257.amzn2.aarch64
bpftool-5.4.144-69.257.amzn2.aarch64
bpftool-debuginfo-5.4.144-69.257.amzn2.aarch64
kernel-devel-5.4.144-69.257.amzn2.aarch64
kernel-debuginfo-5.4.144-69.257.amzn2.aarch64
i686:
kernel-headers-5.4.144-69.257.amzn2.i686
src:
kernel-5.4.144-69.257.amzn2.src
x86_64:
kernel-5.4.144-69.257.amzn2.x86_64
kernel-headers-5.4.144-69.257.amzn2.x86_64
kernel-debuginfo-common-x86_64-5.4.144-69.257.amzn2.x86_64
perf-5.4.144-69.257.amzn2.x86_64
perf-debuginfo-5.4.144-69.257.amzn2.x86_64
python-perf-5.4.144-69.257.amzn2.x86_64
python-perf-debuginfo-5.4.144-69.257.amzn2.x86_64
kernel-tools-5.4.144-69.257.amzn2.x86_64
kernel-tools-devel-5.4.144-69.257.amzn2.x86_64
kernel-tools-debuginfo-5.4.144-69.257.amzn2.x86_64
bpftool-5.4.144-69.257.amzn2.x86_64
bpftool-debuginfo-5.4.144-69.257.amzn2.x86_64
kernel-devel-5.4.144-69.257.amzn2.x86_64
kernel-debuginfo-5.4.144-69.257.amzn2.x86_64